Category Archives: 2020 Birding Blog

Rare Birds in November

While 2020 has been a year filled with turmoil and strife for many people, for birders in Wisconsin, this year has provided numerous rare birds. This trend continued in November when two Brants were reported within weeks of each other.

I made the nearly two hour trip up to Manitowoc in hopes of getting a look at the Brant that had been frequenting the impoundment. While the air temperature wasn’t particularly cold the high speed winds made it feel chilly. I walked out to the area where the bird was being seen to find several birds loafing around in the shallow water and on the mudflats. Among them were American Coots, Canada Geese, Northern Shovelers, and Greater Yellowlegs. The sun was in my eyes making it hard to see, but from what I could tell, the Brant wasn’t mixed in with this assorted group of birds.

Brant

I continued walking south around the impoundment until I rounded the corner and saw a single bird sitting near a puddle. To my surprise it was the Brant! It was extremely close to the path and occasionally looked up from eating grass. I took several pictures and videos before moving around the rest of the impoundment. On my way back I encountered two Wilson’s Snipes along with a White-tailed Deer that was swimming out in the lake.

A few weeks later I followed a report of a Red Phalarope in Dane County. Knowing I had to go to work later in the dat, I made the quick decision to try for it. I drove the hour west under cloudy and ominous looking skies and got to the boat launch where the bird had been reported. To my delight I saw other birders pointing cameras at the lake.

Red Phalarope

As I got closer, I saw the small bird twirling around in the water no more than five feet off shore. It seemed to have very little to no fear of the birders present and went about its business feeding in what must have been fairly cold water. The Red Phalarope is the rarest of the three Phalaropes that make visits to Wisconsin and it was amazing to see a rare bird at such close range.

With all of the craziness that life has thrown at us this November it was great to be able to get lost in the chase and find some year birds.

The Finches are Coming?

Each year, certain migratory birds in North America make the trip south to their wintering grounds. This journey takes place every year in roughly the same pattern. So much so, that one can almost plan their calendar according to the arrival and departure of a certain species. However, there is another migration that takes place in a much different way: the winter finch migration.

Winter finches reside in the northern forests of Canada during summer and often move around in fall and winter. However, they don’t migrate in the same patterns as other bird species. In fact they don’t even repeat the same pattern from one year to the next.

Red Crossbill
Red Crossbill

The term “irruption” is often used to describe mass migrations of some of these northern species into the United States. In years past, birders have noticed increased numbers of certain winter finch species (Inlcluding Crossbills, Evening Grosbeaks, Pine Siskins and more) in some winters, while in other winters, North America’s conifer forests stand untouched by these birds.

Part of the mystery of winter finches is that for the longest time, it was unclear which species would irrupt (if any) on a given year and what the cause was for these large flights of birds moving across the continent. It turns out there is actually a singular driving force to the movements of these birds: food.

Purple Finch
Purple Finch

The best way to predict which winter finch species are going to be moving south is by analyzing each species preferred food source in the north. In particular, many of these birds feed on conifer cones. When cone crops are low, these nomadic birds migrate to other areas in search of food. Enter the winter finch forecast.

Each year experts (originally Ron Pittaway and now Tyler Hoar of Ontario Field Ornithologists) put together a detailed picture of which northern conifer crops are high and low in Canada, and therefore which finch species are expected to irrupt and move into the United states. What is particularly interesting about these finch species is that each one seems to prefer a different type of conifer seed as its dietary staple. Thus, understanding the movements of a particular species is somewhat of a scientific art form. This report has become an annual treat that is highly anticipated by birders excited by the prospect of seeing these colorful birds dotting the winter landscape.

White-winged Crossbills
White-winged Crossbills

The winter finch forecast usually comes out in the middle of September and provides an excellent sneak preview of what to expect as far as the types of birds you’re likely to see come fall and winter. You can find this exciting report by going to the Finch Research Network , joining the finches, irruptions, and mast crops Facebook group, or by waiting until someone in your local birding community posts it.

Note: In addition to the winter finches, the forecast also includes clues to other irruptive and nomadic species too such as Red-breasted Nuthatches and Bohemian Waxwings.

Red Knot in Manitowoc

On Sunday I took my friend Ashlee up to the Manitowoc lake front in search of some migrating shorebirds. Over the past week there had been multiple rare birds reported there including a Buff-breasted Sandpiper and a Red Knot. In addition, Manitowoc has some very pretty views along the lake which make it a great spot to visit even if the birds there are common.

When we arrived, there was a cool breeze blowing across the harbor and with air temperatures around 68 degrees (perfect for a September day in Wisconsin.) We walked the concrete path out over the water and before we even got to our birding spot, encountered two minks darting around the rocks catching Round Gobies. The minks must have been used to people as they made no qualms about being out in the open and even sometimes seeming to investigate the onlookers.

Mink
Mink

We continued to the end of the concrete path where we could see a lot of what appeared to be freshly dredged substrate. The peeps were out working the edges of the mounds of soil and puddles that dotted the landscape. The first birds we noticed on the mud flats were the usual Pectoral Sandpipers, Semipalmated Sandpipers, and Least Sandpipers. In addition to these birds in the foreground were Greater and Lesser Yellowlegs hanging out near the water in the back along with two American White Pelicans.

As we scoured the numerous birds feeding, we saw there were actually numerous Stilt Sandpipers and Semipalmated Plovers mixed in on the north side of the mud flats. As we looked closer, we noticed a dull gray bird that seemed different than anything else we saw there. This bird was round and stout with a stubbier bill than the nearby Stilt Sandpipers and had a faint white stripe over the eye. While it was missing it’s namesake reddish orange breeding plumage, this was in fact the Red Knot!

Red Knot

We watched the Red Knot for a while, getting some really nice looks at it before moving on. We decided to climb the rocks that lined the impoundment. Years ago these rocks were extremely easy to walk on as they were large and flat, but now, the lake had eroded large chunks of them away making it a bit more of an adventure. We rounded the bay where the shorebirds were and worked our way south on the rocks. Caspian Terns called overhead and Spotted Sandpipers flew from rock to rock as we walked by.

Eventually we made our way back to our original spot where most of the shorebirds were. A Great Blue Heron stood watch over the shorebirds and we found a buffy colored Baird’s Sandpiper among the peeps. The Red Knot was nowhere to be found when we checked the second time so we were very glad to have seen it the first time around.

Overall, it was an absolutely beautiful day in early September to be out birding and Ashlee and I enjoyed ourselves checking out the shorebirds and exploring Manitowoc.

The 7 Best Bird Species for De-Extinction

Disclaimer: This article does not discuss the ethics of de-extinction. It is only meant to spark interest and debate about potential candidates. 

In the natural world, there is no event more tragic than the extinction of an entire species. Since the 1960s more than 700 species of plants and animals have disappeared from the Earth, thought to never be seen again. Whereas extinction used to be finality, now there may be hope to one day see these creatures again through the process of de-extinction. De-extinction is the generation of an organism that is extinct. This process can be done through cloning, genome editing, and/or selective breeding.

While some of the most talked about animals to be brought back are large mammals such as the Tasmanian Tiger or Wooly Mammoth, some of the most realistic possibile candidates are birds. Here are the top seven birds that could potentially be brought back from extinction.

7. Great Auk

This large, penguin-like bird could be once found in the waters of the north Atlantic from the shores of Canada all the way to Western Europe. Humans are almost entirely to blame for the extinction of the Great Auk as it was hunted for its meat and down that was used for pillows. By the middle of the 16th century, this bird had been all but wiped out from the coasts of Europe. In 1835 the last colony of Great Auks was killed in Iceland on the island of Eldey for their skins, desired by museums. 78 Great Auk skins and 24 complete skeletons still exist, and cells could potentially be used for DNA extraction.

Great Auk

6. Labrador Duck

This sea duck was a migratory North American bird species that wintered off the coasts of New England and bred in Labrador and Quebec, Canada. This particular species seems to have already been rare at the time that Europeans arrived in the new world. As a result, not much is known about their life and habits. It is thought that harvesting of Labrador Duck eggs may have been a strong contributor to their eventual disappearance late in the 19th century. Their extinction is recent enough that specimens of this bird still exist and DNA could potentially be gathered.

Labrador Duck

5. Dusky Seaside Sparrow

The Dusky Seaside Sparrow was a Seaside Sparrow subspecies that lived in the Merritt Island salt marshes in Florida. It was known for its dark plumage and distinct song that separated it from other seaside sparrows. The cause of the Dusky Seaside Sparrow’s extinction is entirely due to habitat destruction. Merritt Island was flooded to reduce the mosquito population around the Kennedy Space Center. Later on, the marshes were drained due to highway construction. These two events destroyed much of the nesting habitat of these birds and led to their demise. The last known Dusky Seaside Sparrow died in 1987, but other subspecies still remain and could hold latent genes that could bring this bird back, or at the very least, a bird that has the same dark plumage.

Dusky Seaside Sparrow

4. Ivory-billed Woodpecker

One of the most legendary birds on this list, the Ivory-billed Woodpecker is presumed extinct. However, sightings in the past few decades lend credence to the idea that some individuals could still be alive somewhere deep in the wilderness. The Ivory-billed Woodpecker is/was one of the largest woodpeckers in the world and possibly went extinct due to habitat destruction. The last accepted sighting was in 1944 in Louisiana. It is something of an icon as birders and ornithologists continue to mount expeditions to capture proof of its continued existence. A better option could potentially be cloning, as its extinction was in the last century and relatives of the species, including the Pileated Woodpecker, still thrive.

Ivory-billed Woodpecker

3. Dodo Bird

The Dodo Bird has become synonymous with extinction. Living on the island of Mauritius off the coast of Madagascar, the Dodo was a large flightless bird that had no natural predators. This became problematic when sailors arrived and not only hunted the Dodo for food, but also brought invasive animals with them that killed Dodos and ravaged their nests. This bird went extinct sometime in the late 1600s and reports of their actual extinction date vary. With bones and some soft tissue samples remaining, the Dodo could someday make a reappearance if they are chosen as a de-extinction candidate.

Dodo

2. Carolina Parakeet

Large flocks of Carolina Parakeets used to inhabit North America from New England all the way to the Mississippi River. These brightly colored and noisy birds moved and socialized in large flocks which may have partially led to their downfall. Carolina Parakeets were hunted for the feather trade and also to eliminate their numbers as they were considered to be a pest to farmers. Their social behavior made it all too easy to destroy entire flocks of birds at a time. Other causes of their extinction included habitat loss and disease. These birds essentially disappeared from the wild by the year 1904, and the last captive specimen died in 1918. There is hope, however, as DNA has been extracted from remaining skins and skeletons.

Carolina Parakeet

1. Passenger Pigeon

One of the most famous extinct animal species; the Passenger Pigeon, quite literally went from millions to none. At their peak, these members of the dove family spread from the Rocky Mountains, east to the Atlantic Coast. The chief cause of their rapid extinction was large-scale hunting as well as land clearing. Much like the Carolina Parakeet, the social flocking behavior of the Passenger Pigeon made it an easy target for hunters. The last Passenger Pigeon (named Martha) died in captivity in 1914. Since then, the Passenger Pigeon has become the poster-child for ecological preservation as it is proof that a species that was once extremely numerous is not impervious to extinction. It is possible that it could also be one of the flagship species to be cloned as enough DNA may exist to recreate the bird’s genome, and it has close relatives that are still alive and well (for now).

Passenger Pigeon

While the disappearance of any species is truly disheartening, there is hope that they may be brought back into existence. With scientists working on ways to synthesize genetic material, it seems like it’s only a matter of time before we will be able to see some of these birds in the flesh for the first time this century.

All photos public domain except for “Dusky Seaside Sparrow” by Wildlife Management Areas. https://flic.kr/p/N7Beef

Neotropic Cormorant vs. Double-crested Cormorant

Every spring, large flocks of dark-colored, long-necked birds make their way across North America: Double crested Cormorants. Due to their distinctive shape, these birds are easy to identify in the marshes and lakes that they inhabit. However, there is another cormorant species that occasionally makes its way north from central and south America that looks incredibly similar to its double-crested relative: The Neotropic Cormorant.

In most places in the United states, with the exception of some southern states, the Neotropic Cormorant is extremely uncommon. For that reason, it pays to know what to look for in order to find a rare species or simply to differentiate them from Double-crested Cormorants in states where the two species regularly overlap.

Size

The first thing to look at is the size and shape. Neotropic Cormorants are shorter and sleeker than Double-crested Cormorants with an average 61cm height, and a wingspan of 102 cm compared to the 70 to 90 cm height and 114 to 123 cm wingspan of the Double-crested Cormorant. In addition to the basic size difference, the Neotropic Cormorant’s tail will appear longer (compared to its body) than the Double-crested Cormorant’s tail. These characteristics are most noticeable in flight when directly compared to the other cormorant species but can also be seen when the birds are perched.

Size Comparison
The Double-crested Cormorant on the left appears larger than the Neotropic Cormorant on the right

Lore Color

Size can be difficult to determine without a direct comparison to other nearby birds. Fortunately, there are some other field marks that can be used to distinguish these two species. First, note the lores (just above the bill, going from the eye to the bill) on the Double-crested Cormorant. Both juveniles and adults display yellow to orange colored lores. In Neotropic Cormorant, the lores are significantly darker. When comparing these two next to each other, there is actually a significant difference.

Double-crested Cormorant
Note the bright orange lore, 90 degree angle of the gular, and the  lack of white around the gular on this Double-crested Cormorant

Gular

Another important area to note on these birds is the gular (which is essentially the upper throat). Both species have orange or yellowish gulars, but the shape is different depending on  the species. If you look carefully, you can see that the Neotropic Cormorant has a gular that angles toward the bill in an acute angle. The gular on the Double-crested Cormorant angles far less, and in many instances makes a 90 degree angle.

Another field mark birders regularly use to distinguish these species is the white triangular marking that lines the gular on the Neotropic cormorant. It’s very obvious in adults but less visible in juveniles.

Neotropic Cormorant
Note the dark lore, acute angle of the gular, and white triangle around the gular on this Neotropic Cormorant

Review

It can be really difficult to make a positive ID based on just one characteristic between these two species. For that reason, it’s best to look at all the field markings. As a whole, an adult Neotropic Cormorant will have a smaller, sleeker stature, a longer tail, dark lores, a gular that acutely angles in toward the bill, and a white triangular marking around the gular. An adult Double-crested Cormorant will be larger and blockier, have a shorter, stubbier tale, brightly colored lores, a gular that is less angled near the mouth, and no white triangle mark around the gular.

A Double-crested Cormorant can be identified by regarding these characteristics:

Larger size
Bulkier Appearance
Brightly colored lores
More obtuse angle where the gular meets the throat
Lack of white around the gular

A Neotropic Cormorant can be identified by the characteristics below

Smaller size
Sleeker appearance
Dark lores
Acute angle where the gular meets the throat
White triangle marking around the gular in adults

With these traits in mind, it becomes much easier to differentiate between these two species. We hope you found this post helpful. Be sure to like and subscribe for more ID tips, and leave a comment below if there are any specific species you would like to see an ID tips about.

Adult Neotropic Cormorant photo by Gary Leavens

 

Epic day of Birding in early April

Early April is the time of year when some of the most interesting migrants start their journey north to their breeding grounds. Many of these birds make stops in Wisconsin along with some that don’t belong here at all. Such is the case of the Golden-crowned Sparrow that showed up at a residence in Calumet County about a week ago.

Initially, the hour and a half drive, combined with nice weather made me disinterested in chasing it since I wanted to enjoy the temperatures outside. However, after the state parks closed ,and with a lot of time on my hands due to COVID lockdown, I decided to make the trip along with Derek.

Golden-crowned Sparrow
Golden-crowned Sparrow

When we arrived at the home the sparrow had been seen at, other birders were just leaving. The bird had been visiting on and off, seemingly showing up a few times per hour. The homeowners were nice enough to let us come up their driveway and wait for the bird to appear. While we waited, we saw several species flying through the yard and foraging including Dark-eyed Juncos, Song Sparrows, Hairy, Woodpeckers, Tree Swallows, Eastern Phoebes, Chipping Sparrows, and Red-winged Blackbirds. After ten minutes or so we noticed a larger sparrow in the thickets near the back of the yard. Even with just quick glimpses we could tell that it was in fact the Golden-crowned Sparrow. Just as quickly as it appeared it was out of sight. Minutes later, it reappeared near the bird feeder just 15 feet from where we were waiting. It only stayed for about 30 seconds before vanishing. Since the Golden-crowned Sparrow is such a rare visitor to our state, we stayed longer, hoping to get one more look. Eventfully, it popped up again and this time stayed for a number of minutes, giving us incredible views.

After getting our lifer Golden-crowned Sparrow, we decided to head to Horicon Marsh in search of some other rare birds. We started on Ledge Road where a Surf Scoter had been seen over the past few days. We quickly found the beautiful breeding plumage bird very close to the road. Surf Scoters can be found every year in Wisconsin, but usually in much larger bodies of water and most typically in the great lakes.

Surf Scoter
Surf Scoter

After viewing the Scoter we followed a hot tip on some Whooping Cranes near the auto tour board walk. I had only ever seen one Whooping Crane in my life and Derek had never seen one, so we were excited about the prospect of finding them. When we got to the boardwalk, a Yellow-rumped Warbler was greeted us. Further out, Blue-winged Teals and Gadwalls floated around in the marsh water. Then, I noticed what looked like a big, white blob to the south. When I saw the white blob put it’s long, elegant head and neck up, I knew immediately what it was. I alerted Derek and we enjoyed some excellent looks at these endangered birds.

Whooping Cranes
Whooping Cranes

As we were looking at the cranes, we got another tip that there was a Eurasian Wigeon seen near the visitor center. We rushed there next as the sky began to darken. When we arrived, there were tons of people there seemingly walking around aimlessly, just wanting to have something to do. While keeping our distance from them, we scoured the water in hopes of finding our third rare species of the day. We located a Pied-billed Grebe, Double-crested Cormorant, Green-winged Teal, pair of Ospreys, Great Blue Heron, and first of year Purple Martin. Sadly, the Eurasian Wigeon was nowhere to be seen. We did however find a hybrid Snow Goose/Canada Goose on our way out which was interesting.

Although we were a little bummed about missing the Eurasian Wigeon, we couldn’t be too upset considering we had an excellent birding day with some great weather while we were out.

Hairy Woodpecker vs. Downy Woodpecker

Hopping up and down trees across North America are two very similar woodpecker species: the Hairy Woodpecker and the Downy Woodpecker. Both are black and white with almost identical patterns, and both can be found in the same habitat. At first glance it may seem impossible to tell these two birds apart, but upon closer inspection there are some tell tale differences that birders can use to make a positive identification.

Size

The first thing that helps to differentiate these species is size. The Hairy Woodpecker is larger than the downy with an average length of 18-26cm and a wingspan of 33-41cm. The Downy Woodpecker measures in at 14-18cm long on average and a wingspan of 25-30cm. This means that the Hairy Woodpecker is approximately one third bigger than a Downy Woodpecker and is about the size of a Red-bellied Woodpecker in size. While size isn’t always the most reliable tool when identifying a species, the difference between these two birds is fairly substantial.

Downy Woodpecker
Downy Woodpecker

Bill Length

The second and possibly best way to tell the Hairy Woodpecker from the Downy Woodpecker is by looking at the bill. The Hairy Woodpecker has a longer bill that is about equal in size to the length of the head. The Downy Woodpecker has a shorter more triangular bill about one third to one half the size of the length of the bird’s head. Bill size comparison is much easier than overall size comparison when there are no direct comparisons available in the field.

 

Hairy Woodpecker
Note the long bill and clean outer tail feathers of this Hairy Woodpecker

Field Markings

There are two field markings that can be used to separate the Hairy Woodpecker from the Downy Woodpecker. The first is a comma mark that goes from the shoulder to the breast. This marking is seen most prominently on the Hairy Woodpecker and is often not visible at all on the Downy. The second marking to look for is the black barring on the white other tail feathers of the Downy Woodpecker that the Hairy Woodpecker lacks. While at a distance these two things can be hard to spot, closer up or with optics, both field markings can be used to differentiate these two woodpeckers.

Downy Woodpecker
Note the small bill, lack of extended “comma” mark and barring on the outer tail feathers of this Downy Woodpecker

Hairy Woodpecker

Larger size
Longer bill
Defined comma marking
Pure white outer tail feathers

Downy Woodpecker

Smaller size
Short triangular bill
Less defined or non existent comma marking
Black barring on outer tail feathers

Although these birds have strikingly similar color patterns and behaviors, with the right knowledge they can be very easy to tell apart. We hope this post was helpful, follow our blog and give us a like of Facebook and Youtube

Harris’s Sparrow in Ozaukee County

On January 17th I heard that a Harris’s Sparrow had been seen by the bird feeders at the Mequon Nature Preserve in Ozaukee County, WI. A day later I decided to make the 50 minute trip north to see if I could find this rare bird.

The Harris’s Sparrow breeds in Northern Canada and can reach as far south as Texas in winter. Their normal range is between the Rocky Mountains and the Mississippi River but each year, a few individuals stray into other parts of the country such as Wisconsin, where a handful of reports come in each year.

With a blizzard the night before, I felt confident that the bird had stayed put and would be looking to the feeders at the preserve for food. When I arrived and got out of the car some light snow was falling and the wind made being outside unpleasant to say the least. A snow removal worker was plowing snow off the parking lot and shoveling the sidewalks and pathways. I walked around the east side of the building and a small flock of American Tree Sparrows and Dark-eyed Juncos flushed from some nearby bushes. I scanned through them, hoping to see the Harris’s among them. No luck this time. I went around to the north side where some bird feeders were. Several birds were actively feeding, including more Juncos and Tree Sparrows and some noisy House Sparrows.

I continued around the building, coming to the west side where there was one feeder and a couple of Black-capped Chickadees, but nothing else. I knew at this point it would be a waiting game.

Harris' Sparrow
Harris’s Sparrow on beams

I made a few more laps around the building when suddenly there was a larger flock of birds at the feeder to the west. Among the smaller birds I had already seen was one that was slightly larger. It had a black cap and white chest with a bright orange beak: It was the Harris’s Sparrow! Just as soon as it had appeared it took off across the road into the shrubs where it seemingly vanished. Feeling unsatisfied with my second-long encounter, I waited longer, thinking it would be back again at some point. As I waited, several other birds came and joined in the search.

It was nearly an hour of people with cameras and binoculars milling around and checking feeders until the sparrow returned. When it did, it stayed in the bushes near the feeder, occasionally moving around. From time to time it would fly up on some wood beams attached to the building. It gave pretty good lucks but was almost always obscured by branches and twigs.

Other birds seen were a flyby Cooper’s Hawk and a surprise flyover Glaucous Gull.