Labor Day weekend: Central Park and Brigantine

Saturday, at an obnoxious 92 degrees, kept me around the house doing yard work.

On Sunday I trekked into Central Park on a day with at best modest migration prospects.  I was lured in by the reports of Red Crossbills the previous two days - a very rare bird for the park in what might be a major irruption year for them.  The Crossbills bad obviously left, despite some time spent searching Hemlocks for them.  Migration was also less than spectacular, with very low numbers of migrants with the exception of one small active patch near the Gill: this yielded Chestnut-sided, Magnolia, Worm-eating, Yellow and Northern Waterthrush.  That was my first Worm-eating Warbler in the park this year - I'd seen or heard others at Sterling Forest and Belleplain SP but as with Cape May Warbler I had struck out on it during spring migration.

On Labor Day itself I went down to Brig again and had a better birding day there than the previous weekend despite some pretty overcast weather.  Three Bobolinks at the start of the one-way section of the wildlife drive.  A Lark Sparrow (my first in NJ and fairly rare in the East) made itself obvious by lurking around the drive itself where the bulky side and white-tipped tail feathers drew my attention.  Several other birders drove right past it and flushed it from the driveway, so it wasn't apparently obvious to everyone.  Double-crested Cormorant numbers were quite high - already on the move with some flocks in the air, there were also a lot of them staging in the area and big flocks were feeding on fish schools along with similarly high numbers of Forster's Terns.  Since it was windy I did unusually poorly with passerines, i.e. no Seaside Sparrows, and the two Ammodramus sparrows that I did see where a nice bonus - Saltmarsh (Sharp-tailed) Sparrows.  While not the first time I've seen them there, they are not an every-trip bird.  Shorebirds were in modest numbers with the typical selection augmented by Ruddy Turnstone, Red Knot (one adult, one juvenile) and three Pectoral Sandpipers.  There were also some interesting terns - a flock on a sandbar with shorebirds had many Royals and a few Caspians.  Later on I saw juvenile Caspians still begging from their parents.  And best of all a juvenile Gull-billed Tern was still being fed by parents that had already started their pre-basic molt and losing their black caps.  A Wild Turkey in the forested area capped off the trip and I did fairly well at avoiding the worst of the Labor Day traffic on the way back home.

Jamaica Bay, August 28th

Despite a really strong showing with Ruffs early in the season, Jamaica Bay has seemed to be pretty anemic when it comes to more regular shorebird species.  Recent deluges (e.g. weekend of Sept 9th) have probably filled up the pond enough to eliminate any more shorebirding until next summer.

I made three visits in late August culminating in the best visit on Aug 28th.  On Aug 26th the best bird was a single White-rumped Sandpiper amongst Semipalmated Sandpipers.  On Aug 27th the south end was fairly slow (Least Sandpiper, Semipalmated Sandpiper, Semipalmated Plover) but at least I picked out the American White Pelican all the way at the north end (it's huge and that yellow bill sticks out even through the heat haze over the full length of the pond).

Finally on the afternoon of Aug 28th I had a little more luck - some cooperative common species at the entrance to the north end (Semipalmated Sandpiper, Semipalmated Plover) and then an accumulation of shorebirds at the end of the first spit - north of what is called Dead Man's Cove which despite its boot-sucking nature has not killed any birders as far as I'm aware.  It's covered a few in mud, however.

South of where I was standing the American Avocet was seen in the distance and then an American Golden-Plover flew in.  After it settled down I made an approach on it, a whole flock of Black-bellied Plovers flew in - they hardly ever are tame enough to accumulate on the spit in front of you, but this time they came in after a (very experienced pro) bird photographer managed to flush them all off the adjacent spit.  In with this flock came two Red Knots - an adult and a juvenile - which periodically would wander down the shore line towards us (it was us by this time - two more photographers including the pro had joined me).  So I spent a "pleasant" afternoon lying in the mud getting chewed on by biting flies taking pictures of plovers, knots, the occasional sandpiper and a few Common Terns.  The Avocet and the American Golden (my first adult on the East Pond) were by far the most interesting, but for once this year there was a good number of shorebirds lined up in front of me.

Heislerville WMA, May 29th

The first foray of the long Memorial Day weekend was down to the Delaware bay shore for migrating shorebirds. At the pullout before I hiked the beach road a nice find was Blue Grosbeak (singing male) along with House Wren and Cedar Waxwing. Along the road there were the predictable Marsh Wrens and Seaside Sparrows and fly-over Herons.

The weather was overcast with mediocre light for photo ops, but that wasn't so bad because the shorebirds at the bay were 99% Semipalmated Sandpipers, with very few Dunlin, Sanderlings, Ruddy Turnstones and absolutely NO Red Knots. Erosion was evident here and some of the coastal marsh from the previous year had been rendered into a pile of vegetation washed up by the tide. Not sure if this was a factor or if timing and food supply led to the Knots being concentrated elsewhere. There were certainly a number of Horseshoe Crabs and eggs, as the abundant Laughing Gulls can attest to. I snapped a few pictures of Semipalmated in very average light and left. On the walk back Semipalmated Plover and Least Sandpipers flew by.

I actually had to take a little jaunt down to Kimball's Beach (Cape May NWR) to see Red Knots along the roped off area of the beach although the number of shorebirds here was quite modest. On the way back up I stopped at CMBO at Goshen in the hopes of finding a hummingbird but the seed feeders here were empty and there were no hummingbird feeders at all - previously this location was good for hummingbirds.

After that I went to Belleplain SF along Sunset Road, but activity there was low in the late morning. I could hear and not see Louisiana Waterthrush, Yellow-billed Cuckoo and Acadian Flycatcher so left unsuccessful.

And finally the coup de grace was at the impoundments at Heislerville where despite the high tide there were relatively few shorebirds, and certainly no Curlew Sandpiper or Ruff.

Heislerville WMA, May 29th 2008

In another part of Heislerville WMA I spent Thursday morning admiring the collection of shorebirds and Laughing Gulls gathered to feed off Horseshoe Crab eggs. There were a good number of Red Knots, second only in number to the abundant Semipalmated Sandpipers. Laughing Gulls and Ruddy Turnstones were also numerous, there were several Sanderlings (less than I had anticipated) and a few Short-billed Dowitchers. And precisely one Willet.

What there weren't many of, however, were Horseshoe Crabs, and I saw several dead ones and about 10 live ones. Of course it's past full moon, and despite the presumably warming water it is not optimal spawning conditions. Who knows if they will wait for the next full moon (mid-late June) or will finish spawning sooner ?

Further away from the shore I found my first-of-season Willow Flycatcher, and the Seaside Sparrows and Marsh Wrens were numerous in the salt marsh. The water level in the impoundment at Heislerville had dropped considerably since as recently as last Monday, making it less than ideal for photography. I watched shorebirds trickling into the impoundment as the tide rose, but I decided to try and beat traffic and left the area at 3:30pm. I did not find the Curlew Sandpiper(s) but the light was harsh and the birds were in the center of the impoundment rather than pushed further towards the edges.

Links:
Tide predictor for Delaware Bay
Moon phase predictor