Sharp-shinned Hawk

Sharp-shinned Hawk
Sharp-shinned Hawk, by Steve Thornhill

Monday, November 18, 2019

November Surprises and Rarity Roundup

November is always an interesting month at the hawkwatch platform, and it can be hard to predict what kinds of interesting species may make appearances. Diurnal non-raptor migration has been picking up, and we've been noticing flights of Tundra Swans, Snow Geese, Common Loons, Great Blue Herons, Red-winged Blackbirds, American Robins, and more. So far, the season high day count for Tundra Swans was 79 on November 3, and the high day count for Snow Geese was 76 on November 17. We are often alerted to the presence of geese and swans as they call while migrating overhead. This beautiful sound can also be heard at night sometimes.


Tundra Swans (Anna Stunkel)
Common Loon (Anna Stunkel)
Snow Geese; mostly blue morphs with one white goose (Anna Stunkel)

Great Blue Heron (Anna Stunkel)

On October 29, a Merlin zoomed by the platform carrying a Yellow-rumped Warbler. While we often see Merlins carrying dragonflies, it's a less common sight to see one carrying a songbird. Steve managed to get some amazing shots.
Merlin with a Yellow-rumped Warbler (Steve Thornhill)
On November 1, we set a new season record for Bald Eagles, breaking last year's previous record! It will be interesting to see if record-breaking flights continue for several seasons since this species is doing so well. Five Golden Eagles have also been seen this season so far, and we hope to find more soon!

Subadult Bald Eagle (Anna Stunkel)
Subadult Bald Eagle (Anna Stunkel)
Juvenile Golden Eagle (Anna Stunkel)
It was interesting to see a nearly tail-less Turkey Vulture on November 2. On the following day, it was seen again (assuming that this was the same bird, based on photographic examination of the tattered tail). Turkey Vultures with partially or fully missing tails are a fairly regular occurrence at hawkwatch sites. Perhaps this has to do with molt, or maybe it results from squabbles with other scavengers while feeding.

Nearly tail-less Turkey Vulture (Anna Stunkel)
Similarly, we have seen a young Bald Eagle with partially missing tail feathers. Maybe the feathers were chomped by an angry fish!

Juvenile Bald Eagle (Anna Stunkel)
Also on November 2, an intermediate or dark morph Swainson's Hawk was seen far out on the east side. This normally western-ranging species occasionally strays to the east, and Kiptopeke often records one or several passing through each season. Due to the bird's distance we were not able to obtain photos.

That same afternoon, Don Metzger spotted a rather late Black-throated Green Warbler. This beautiful bird was flitting around and feeding in the Dog Fennel right behind the platform, which allowed for stunning views.

Black-throated Green Warbler (Anna Stunkel)


Black-throated Green Warbler (Anna Stunkel)

To add to the excitement of 11/2, we had the unique opportunity to watch a rocket launch from the platform! The Antares NG-12 took off from the NASA Wallops Island facility at 9:59 am, leaving a brilliant red streak across the sky to our northeast.

Antares NG-12 rocket launch (Steve Thornhill)
 As is typical in November, the Red-tailed Hawk migration has been picking up. So far, our highest day count for the species was 44 birds on November 9. It is always interesting to see the beautiful variation in this species. Some have almost no belly band, while others are heavily marked in different shades. Some are pale, while others have rufous tones on their bellies.

Juvenile Red-tailed Hawk (Paul Shanahan)
We have been seeing some likely "Northern" Red-tailed Hawks as the season progresses. It is difficult to identify these birds for certain, but they often have very darkly marked, blobby belly bands and dark throats. There is much variation in the subspecies, and intergrades are also possible.

Possible Buteo jamaicensis abieticola ("Northern" Red-tailed Hawk; Steve Thornhill)
We have been enjoying some beautiful views of Northern Harriers. Harrier migration is fascinating in that these birds may fly in any conditions (including rain, fog, and snow) and at any time of day or even night. Their migration is more extended than many of the other raptor species that we see here, and the peak is somewhat unpredictable.

 
Juvenile Northern Harrier (Anna Stunkel)





Along with the spectacle of these movements, we have also had some rare visitors to the platform. On November 6, a Black-chinned Hummingbird visited the hummingbird feeders and was photographed. We noted a glint of purple on the bird's throat and rounded outer primary feathers. For photos, take a look at Shiloh Schulte and Benjamin Clock's eBird checklist.

On that same day, seven American White Pelicans soared right over the platform, in beautiful formation.

 

American White Pelicans (Anna Stunkel)
Resident Pileated Woodpeckers have been putting on a good show, sometimes flying low over the platform singly or as a pair.

Pileated Woodpecker (Anna Stunkel)

Red-shouldered Hawks have been moving through in good numbers, and we have also had the chance to see a few perched birds in the area. Red-shoulders are often sit-and-wait predators, meaning that they like to sit on exposed perches while waiting for prey to pass by. This can provide some great photo opportunities, such as this beautiful adult that posed on a wire near the park entrance.

 
Red-shouldered Hawk (Anna Stunkel)

Red-shouldered Hawk fluffing up (Anna Stunkel)
Both American Crows and Fish Crows have been particularly active this season, which has resulted in quite a bit of mobbing activity. Red-tailed Hawks are a frequent target, such as this unlucky bird.
Red-tailed Hawk being mobbed by crows (Steve Thornhill)
We have been noticing a very large number of Brown Pelicans hanging around the concrete ships this season. On November 8, Harry Armistead (who has been birding on the Eastern Shore for decades) even had a personal high count of 630 pelicans! It is nice to see that these birds are doing so well.

Brown Pelican (Paul Shanahan)
Almost every day lately, we have been delighted to see a Red Fox trotting past the platform. Foxes are common in the park, and there is a den visible from the Peregrine Boardwalk close to the beach. Keep an eye out for their tracks as you walk along the park's trails. Red Foxes travel in a direct register trot, which means that each hind foot lands precisely in the same spot as the front foot on the same side. As a result, fox tracks are often in a neat line (unlike the haphazard tracks of a domestic dog).
Red Fox (Anna Stunkel)
Red Fox (Paul Shanahan)
Held on November 9, this year's Rarity Roundup was a great success. During the annual event, birders from all over Virginia come to the Eastern Shore in search of rare and unusual bird species. A total of 57 people attended, with birders splitting up and covering different territories throughout Northampton County. A total of 155 species were seen, including several interesting rarities. A Brewer's Sparrow (only the second state record) was a huge highlight, spotted by Wes Teets at the Mockhorn WMA--GATR Tract. The bird hung around feeding with other sparrows for quite some time, allowing for great looks and photographing opportunities. Other sightings included Cave Swallows, Brewer's Blackbirds, an adult Northern Goshawk, and more.

Brewer's Sparrow (Paul Shanahan)
The day after the Roundup, another hummingbird was spotted visiting the platform feeders. This bird was either a Black-chinned or Ruby-throated Hummingbird, and photos/video footage suggest that Black-chinned is a strong possibility. The primaries appeared to be rounded, and the bird was pumping its tail very often in flight; these are both typical characteristics of Black-chinned Hummingbirds.


It's been a wonderfully diverse November overall, and we hope to have plenty more interesting sightings during the next couple of weeks!

~Anna