the robins are confusing me

Update on my last post ...

I really thought that my babies had up and left. The nest would be empty for a day or so, then one would sleep there. But they've been building an addition. And yesterday I heard very young tweeting. I took my camera and found that there are three teeny babies in there.

I don't get it ... maybe they had two litters (or whatever they're called for birds)?

The babies as of a few weeks ago

I thought these were the babies

Here's yesterday's video: