[lpantic]

We have a nest in the pine tree outside our kitchen window (southern California), probably Costa's or Anna's Hummingbird, we have a lot of both and the females look alike to me. I think the eggs hatched yesterday because Mama is spending way more time now flying around and coming back and sticking her beak down into the nest so I presume she is feeding the babies. I can't see down into the nest so my question is, about how long will it be before the babies will be big enough to be visible sticking their heads out?

[fugl]

You'll probably starting seeing the tips of the bills in 5 or 6 days. The babies typically fledge at about 20 days so more than just the bills should be visible well before then.

Here's a couple of Black-chinned nestlings I photographed a couple of years ago: http://www.flickr.com/photos/fugl/26...57602214826948