An Egg? On Central Park South?

Red-tailed Hawks lay their eggs one at a time, 36-48 hours apart. When the first egg is laid, you see lots of behavioral changes. The female stops standing upright on the nest, and begins to lay flat. She also does a “shimmy”, where she wiggles to get the best contact between her brood patch on her chest and the eggs, when she lays down. The pair also does exchanges, where the male takes over egg warming duties and gives the female a break.

Today, I saw all of these behaviors. So there is a good chance an egg was laid. If so, this would mean we might have hatchlings on the last week of April or the first week of May. Fingers crossed!

Just a tail is visible.
The view from “The Dairy”.
Again, just a tail is visible.
The male arrives. He’s on the left.
The female jumps up on the shield.
She leaves briefly.
He leaves, but then both return, and he brings prey.
She takes it and after about a minute will leave.
She goes two buildings west on Central Park South, picks at the prey but goes elsewhere to eat it.
He’s on the nest for about 45 minutes, and leaves before she returns.
After about five minutes without anyone on the nest, the female returns to a nearby perch.
The female returns to the nest.
The male makes makes a trip to the top of 40 Central Park West.
The female all settled down.

Ritz-Carlton Female On Nest

The female Red-tailed Hawk of the Ritz-Carton pair spent the afternoon on the nest. The male visited twice while I was watching. She doesn’t seen to have laid eggs yet, but looks to be getting ready.

She can hide out of view on the nest, or can only be seen from the west or the east. She may have been on the nest on Thursday and Friday, when I couldn’t find her.

Bryant Park Barred Owl

The Barred Owl that was in the park on Friday, continued use the same roost on Saturday. It was spotted catching and eating a Brown Rat on Friday night. I’m very concerned about the quality of prey in the park. I counted at least 10 rodent bait boxes in the park. While these could have snare traps, they most likely contain rodenticides. If this owl stays in the park, it will only be a few weeks before it is poisoned.

Ritz-Carlton Red-tailed Hawks

I went by around noon today, and didn’t see the hawks but returned around 4 pm. I thought I had struck out, but after about twenty minutes, the male appeared. He circled around the nest with a twig, but got more interested in scaring up all the pigeons that feed on the horse feed just inside the park at Sixth Avenue.

He ended up perching in Hallett Nature Sanctuary for about ten minutes before leaving. I caught up with him again as he went to the nest.

I’m a bit confused about what’s going on as I had been seeing the female near the nest each day. I haven’t seen her in the last two day. I don’t think she’s on the nest yet, so it will be interesting to see what happens over the next few days.

Bryant Park Barred Owl

In the northeast corner of Bryant Park, a Barred Owl roosted today. It certainly isn’t the safest place for an owl with lots of cars and people, but it certainly has lots of prey. But the park also has a lot of bait boxes. These can hold rodenticides or snare traps. If they have rodenticides, there might be a problem with the prey.