Showing posts with label hybrids. Show all posts
Showing posts with label hybrids. Show all posts

Saturday, May 21, 2011

Sterling Forest, May 21st

Back up to Sterling Forest on the first sunny day for a over a week, and as it transpired the only sunny day of the weekend. Getting there around 7:30am I checked Blue Lake, where there was little singing activity, so I spent the entire morning along the power line cut at Ironwood Road.

A relatively cool start after a week of rain, and there wasn't that much active singing. In particular I heard no singing Golden-winged until I turned around on the trail, which is where I saw my first male. By that time I'd already seen two singing Blue-winged and photographed a female that was paired with the first "Blue-winged".

I say "Blue-winged" because it was this bird - almost certainly the one that was singing in the same tree as the Golden-winged 10 days perviously - that had pretty obvious Golden-winged genes in it. From underneath it's an unremarkable Blue-winged, but when I saw it from the side the upper wingbar had yellow in it, and the lower wing bar was both broad and solidly yellow. The face was perfect Blue-winged, so it wasn't an obvious "Lawrence's" Warbler. Some sort of back-cross that was 3/4 Blue-winged and 1/4 Golden-winged. Based on tail feather shape (and wear?) it was a first spring bird. The only good thing about all of this is that it was at least paired with a Blue-winged female, not a Golden-winged.

I had three singing Golden-winged on the day, plus a good mix of other warblers: Cerulean (singing male, also seen), Yellow Warbler, American Redstart, Black-and-white Warbler, Magnolia Warbler, Chestnut-sided Warbler, Common Yellowthroat, Ovenbird (heard), Hooded Warbler (heard). That's down from my previous trip here, but a pretty good total given that there was little migration ongoing with another in a series of winds out of the east.

Other passerines: Indigo Bunting, Eastern Towhee, Field Sparrow, Scarlet Tanager, Baltimore Oriole, Yellow-billed Cuckoo (heard), Eastern Wood-Peewee and Great Crested Flycatcher. I also had an Empidonax-sp that looked a lot like a Least Flycatcher but I wasn't totally sure of it based on incomplete looks (but not Acadian or Yellow-bellied). Not a bad day and I stayed a little later there due to the slow start.

Of note were a young Snapping Turtle crawling up the hill, and a large (5+ ft!) Black Rat Snake sprawled across the trail and really quite sluggish in the lower temperatures of the morning.

Osprey
Red-tailed Hawk
Yellow-billed Cuckoo
Ruby-throated Hummingbird
Eastern Wood-Pewee
Least Flycatcher
Great Crested Flycatcher
Yellow-throated Vireo
Red-eyed Vireo
Barn Swallow
Veery
Wood Thrush
Gray Catbird
Blue-winged Warbler
Golden-winged Warbler
Cerulean Warbler
Yellow Warbler
Chestnut-sided Warbler
Magnolia Warbler
Prairie Warbler
Black-and-white Warbler
American Redstart
Ovenbird
Common Yellowthroat
Hooded Warbler
Scarlet Tanager
Eastern Towhee
Field Sparrow
Indigo Bunting
Baltimore Oriole