Showing posts with label Delaware. Show all posts
Showing posts with label Delaware. Show all posts

Saturday, June 14, 2008

Delaware Little Egret - not - June 14th

Emboldened by my successful run for the Prime Hook Wood Sandpiper a few weeks back I made a trip to familiar territory of the Bombay Hook NWR near Smyrna, DE in search of the reported Little Egret. I'd seen a few Little Egrets at my old UK childhood birding patch in January (much to my surprise), but I'd never seen one in the USA.

Little Egret looks a lot like a white Western Reef-Heron, and in fact one may be a subspecies of the other - the taxonomy is in flux. The most pressing problem is telling it from Snowy Egret, with which it shares similar overall size, black legs with yellow feet, and of course an overwhelming whiteness. Telling Little Egret from Snowy is not an issue in the UK. However here in the USA more subtle clues are needed. For one thing Little Egret has a rather thicker and longer bill - it presents as heavier than the Snowy's. The other thing, and something shown by the Delaware bird, is the presence of two thick plumes on the back of the head in contrast to the wispier plumes of the Snowy Egret. A recent post on BIRDWG01 by Alvaro Jaramillo also mentioned that the breast plumes were thicker and coarser in Little Egret. Of much less use, in general, are the bare parts since Little Egret can show yellow lores and the feet have a variable color too. In the case of this specific individual the Little Egret's lores were dull blue-gray so this was another ID mark for this bird, although perhaps not for the species in general.

Getting to Bombay Hook around 8am the tide was high, which I figured would push the small egrets into the pools. Barn Swallows and Purple Martins were at the visitor center. The first pool contained a decent number of Great Egrets, showing just how variable the size of a Great Egret can look when you're looking for small white herons. There were one or two Great Blue Herons as well. In the second pool, Shearness, there were quite a few of both those heron species, Black-necked Stilt and some nervous Killdeer. At the far end of the pool there were a couple of Snowy Egrets. Then onto Bear Swamp pool where there were almost no herons at all. I alternated between Shearness and Bear Swamp while I was there, because this is where the bird was seen. After 3 hours of covering the 3 pools at the reserve, and I wasn't the only one doing this, I gave up and came home. I've seen no sightings of the Little Egret from the past weekend, either.

Nice sightings while I was there were a couple of in-flight Clapper Rails, 5 Bald Eagles (one adult, 4 immatures), several Black-necked Stilts, Marsh Wren. Very few terns were in evidence - perhaps on breeding colonies elsewhere. Other birds included Ruby-throated Hummingbird, Indigo Bunting, Eastern Wood-Pewee, Eastern Kingbird, Common Yellowthroat and Swamp Sparrow. I attempted a wander down the boardwalk trail to look for other passerines but was literally bombarded by biting insects within the first 50 yards (the greenheads grew more enthusiastic as it got hotter through the morning) so I gave up on that. Not a bad trip, 2 hours each way from Princeton and some relatively cheap gas found at Carney's Point on the NJ side, but ultimately the first failed chase after ten successful ones got me from 599-609.

Can't get them all.

Monday, May 12, 2008

Out of area - Wood Sandpiper in Delaware, May 11th

Normally found in the Aleutians, a Wood Sandpiper was found in Delaware on May 5th and was cooperative enough to stick around for at least a week. I've seen this species in Britain a fair number of times since it used to migrate through my local patch as a kid, but not yet on this side of the pond. This was apparently the third record for the north-east (1907, 1990 in Rye NY and this bird). Well worth the drive down to the Broadkill Beach impoundments at Prime Hook NWR south of Dover DE. Big numbers of Least Sandpipers along with other shorebird species, with Blue Grosbeak and Eastern Meadowlark singing from the wires.

The weather wasn't quite as pretty with increasing overcast and quite a bit of wind. I dropped by Bombay Hook NWR on the way back north (near Smyrna, DE) and found quite a few shorebirds along the entrance round although precious few in the rather full impoundments on the reserve proper.

Getting closer to home I stopped at Heislerville WMA in southern NJ and found the impoundment there also rather full from the recent rains - shorebirds were roosting in tight-packed groups at the edge of the impoundment. The species there were mostly Semipalmated Sandpipers.