Nesting season notes

In early Summer, the migration is over, and the main points of interest are the nesting birds. There are twenty or so species nesting in Central Park. In early June, my attention was held by the Warbling Vireo nest I mentioned in an earlier post.

That's one of the probably three nestlings getting what looks like a whole moth all his own, just a couple of days before they fledged. They did it on a weekend I was away, and a week before I thought it would happen. The nest must have been there well before I first saw it.

Right after the Vireos, I noticed a Baltimore Oriole nest near the bathrooms in the Ramble.

This photo, too, was only a day or so before fledging. I don't know how I missed this very obvious nest right over the path, but I didn't see it until I was standing under another tree nearby and Mama Oriole came out and scolded me.

She didn't like anyone anywhere near her nest tree.

One species that has had a hard time nesting in the Park lately is the Canada Goose. The Central Park Conservancy has been on a goose eradication campaign for some years, which has included paying "experts" to go and oil or break eggs and destroy nests.

Despite the efforts of the Goosestapo, one or two pairs do manage to breed every year. I found these lazy half-grown goslings hanging out at the edge of the Reservoir the other week.

On the other hand, everybody loves ducklings. Remember the gang of young Mallards at Turtle Pond that I posted a photo of some time back? They're growing into fine young ducks.

At least the survivors are, anyway. There were ten originally, and it looks like four have been taken by predators. But not to worry, right after I took this picture, I saw this:

That's ten more Mallard ducklings and another busy mama duck.

Elsewhere, the various Red-Tailed Hawk nests have fledged, Ben Cacace reports that the Yellow-Crowned Night Heron on Governor's island has thatched, and I see from photos online that the young Common Terns are doing well.

Spring is over, but summer hasn't started

Let's start with the big news from Central Park: the Warbling Vireos have hatched!

Warbling Vireo feeding nestling

The hatching happened over the weekend while I was sick, but I was able to get a couple of nice photos of the nestlings being fed today. I'm pretty sure there are at least two nestlings, and this species usually lays four eggs, so they might be more.

It was interesting watching the nest. It seems to work just as I've read: most of the feeding is done by the female, though the male does some and is always nearby guarding the area. What happens is, he'll give a short burst of song, then fly in to quickly check the nest, and fly off; sometimes he'll sing again after flying out. The female arrives a minute or so later and does a more thorough job of feeding.

Also, the intervals between feedings are surprisingly long (again, just as I've read), between five and ten minutes. They're supposed to get increasingly frequent during the two weeks it will take the little ones to fledge.

That seems backwards, doesn't it? Shouldn't the newborns demand constant feeding? I wonder if it's a defense against parasitism. The much larger cowbird babies need more feeding. That's why they kick their host's offspring out of the nest--they'd starve if they had to share resources at all--and kicking them out is part of why they have to be larger at hatching. Anyway, it seems to me that the very slow feeding schedule of the Warbling Vireos would be bad for such nestlings--maybe that's enough to keep their nests from being parasitized.

Anyway, Spring ended with the traditional sighting of a flurry of female Blackpoll warblers.

that's all, folks!

Blackpolls are the latest Spring migrants among warblers, and the females (as in many species) migrate later than males, so when you see female Blackpolls coming through, it's about over.

Of course, there are some later-arriving non-warbler species, like this Yellow-Billed Cuckoo.

a two-cuckoo year!

That sighting game me both Cuckoo species for the year, which doesn't always happen. And there are always stragglers, like this Lincoln's Sparrow who is stuck in Bryant park:

Lincoln's lurking near the library

There was a nice Swamp Sparrow, too, and a couple of White-Throateds, all around the birdbath in the northeast part of the park. Hopefully the'll all find their way out soon.

So spring is gone, but it doesn't feel much like Summer yet--cool though humid. But there are fledling birds all over--robins and Starlings and House sparrows, and at Turtle Pond, a raft of ducklings.

a raft of ducklings

I think these are Mallards, but another observer thought Gadwalls. There is a possibly nesting Gadwall pair as well as a female Mallard nesting near the pond. I think their bills are too long for Gadwalls, though those flank spots are very Gadwallish.

Since we're back to the baby birds, here's another pic of the Vireos. Wonderful little birds.

I warn you, you're going to be seeing a lot of this nest the nest couple of weeks

Things I haven't seen

Almost every time I go out birding, I see things I haven't seen before. Memorial Day weekend was particularly rich.

On Saturday, I went up to Randall's Island for the first time in a couple of months. It wasn't terribly productive, but there was a Killdeer at the salt marsh on the north shore of the island. That's not too unusual, but its behavior was not what I'm used to seeing.

The Kildeers I've seen there are usually transients and quiet; this one was calling constantly, as befits its scientific name (Charadrius vociferus, which is Latin for "loudmouth plover"). The call wasn't the killdeer that given it its common name, but a several long high peeps followed by a descending series of short notes.

And then it flew off the rocks in the saltmarsh to the baseball field, ran several steps, and flung itself in the infield dirt with one wing stretched out.

distraction

A distraction display! I'd never seen one. It must have a nest in the marsh area. I hope that works out OK, but between the starlings, the grackles, and the gulls, I'm a little dubious.

There was also a Laughing Gull, my first of the year, hanging out with some Ring-Billed Gulls on the outfield of another baseball diamond, and giving me a good view.

gull, Laughing and loafing

Sunday was a glorious day to be out in Central Park, but not if you were a starling who got a little too close to this Black-Crowned Night Heron.

nature red in tooth and claw

I've seen herons eat baby birds before, but this was a full-sized adult, and he had a great deal of trouble swallowing it. He eventually got it down, but looked quite saturnine afterward.

Monday I made an excursion to the northern part of Central Park. at the Pool (about 103rd street on the west side), I saw ... um, well. I saw two male Mallards mating.

well, I never!

I see from Teh Google that this is not rare, but I had never seen it before. It was clearly mating behavior, and not fighting, because they did the typical head-bobbing display at each other before one ducked down in the water and the other mounted.

Things were pretty quiet otherwise. Up at the the compost area on The Mount, where sometimes shorebirds stop off to browse in the ditches, there was a family of House Wrens with just-fledged young begging for food.

baby House Wren

Thinking about it, I don't recall ever seeing baby wrens before.

Back downtown in the Ramble, there's a Warbling Vireo nest. It's one of many in the park this year, but it's unusual in being clearly visible from the ground and not too high up. So with luck I'll have several weeks of rare views of Vireos raising their young.

Warbling vireo on nest

The male sings constantly while taking his turn on the nest, by the way. Quite charming. Also, those are spiderwebs all over the outside of the nest--an excellent structural material. Many thanks to Martin Sandler for pointing out the nest. Although it's fairly out in the open, I still would never have spotted it myself.

Fledglings and migrants

By now, many of the birds nesting in Central Park have finished raising their young (some, like the Robins are on their second or third brood, in case you were wondering why there are so many Robins in the world). I've been seeing the inevitable young Grackles, Starlings, Cardinals, Mallards, and so on, and also young Orioles, Waxwings, and this charming little Warbling Vireo:

baby Warbling Vireo, in the big willow at the Upper Lobe

There were some Cardinal juveniles around as well, chasing about and begging food from any bird in the area, including each other and the little Vireo.

A few days before that, I saw one of the parent Vireos in the same spot:

adult Warbling Vireo, in the big willow at the Upper Lobe

Warbling Vireos are usually quite hard to get a good photo of, so I was happy to see this one being so cooperative.

Migrants continue to move through. On the rumors-of-warblers front, a Cerulean (adult male!) was reported around the Upper Lobe on Sunday, and a Prothonotary on saturday at the Point. These were unfortunately not refound. There have been several reports of Worm-Eating Warblers. Elena and I had a Canada Warbler on Saturday at Azalea Pond, a bit early, and of course Black-And-White Warblers, American Redstarts, and Northern Waterthrushes are in.

Also on Saturday, we had the Olive-Sided Flycatcher at Azalea Pond again, and a Great Crested Flycatcher near bank Rock Bridge.

Goodness Gracious, Great Crested Flycatcher!

Enough swallows to make a summer

sure, one isn't enough, but Randall's Island now has enough swallows to make a summer

I went to Randall's Island yesterday. Swallows have taken over the northeast shore. Everywhere you look, there are Barn Swallows. I counted a couple of dozen at least, all swooping around, too fast for me to photograph.

The Tree Swallows were fewer and more cooperative.

Tree Swallow singing to claim a nesting area

The Parks department has put up some nest boxes, and the Tree Swallows have moved in.

the happy homeowners

Of, course, if there's a nest, the birds must be getting ready to fill it.

Ah, Spring, Spring! Great is the Spring, and so forth! -Basho

The nest boxes are right out in the open in an area with unrestricted access (that is, no fences; you're meant to walk along the shoreline); one of them is about 25 feet from a picnic table. The swallows aren't especially shy birds, I don't think, but if you visit, do give them a little space.

There were a lot of other birds as well. A big shoal of Brant was in the East River, along with a few Laughing Gulls, and there were Killdeer and a Spotted Sandpiper on the shores of the Bronx Kill (the bit of riser that separates Randall's Island from the Bronx). And some remarkably sharp-looking Savannah Sparrows.

King of the world, Ma!

In the freshwater marsh neat Little Hell Gate Inlet, I found Red-Winged Blackbirds (of course), but also Common Yellowthroats, a Yellow Warbler, and a Warbling Vireo singing loudly (of course).

Warbling Vireo, just like it says on the label

A splendid day in a splendid Spring migration. The Spotted Sandpiper and the Laughing Gulls were my first of the year, bringing me to 155 species in the county. I didn't get to that number until September last year.

Yellow and Red

Migration slowed down a little the last couple of days. Sunday, Elena and I had a nice day out in Central Park, but I had no new species. We missed the big bird of the day, a Kentucky Warbler seen at Evodia north of the feeders about 5:30pm. Oh well, you can't get all the birds.

Monday afternoon, I went down to Madison Square Park to chase the Prothonotary Warbler that had been reported there for a few days. Got it!

Mister Yellow

Madison Square Park was amazingly birdy for such a small urban park. I saw several other warblers including my first-of-season Black-Throated Green Warbler there (141 species for the year in Manhattan now).

Earlier, I finally saw the Summer Tanager that has been seen for a few days in the Ramble.

Mister Red

Not a great shot, but hey, life bird.

In the morning, I had a great view of a Warbling Vireo singing and feeding in a flowering tree at Maintenance meadow. They are such secretive birds, normally you only hear their loud, cheerful song.

Mr. Elusive