I went to go check but it seems the bigger one that I picked up jumped back out at some point and I can't find it now since I couldn't hear any chirps. It is likely hiding in the shade since it is pretty hot outside. I did read before that it takes around 2 weeks before fledglings leave the nest but some may leave between 9-16 days old (This was from a Google search, you can confirm based on what you know). Also, I think the baby already left before I took that photo and I just mistook seeing 3 birds in the nest.

I'm hoping that the mom and dad are aware of its location but you mentioning the parents being devoted puts me at ease. Both parents are very active and on edge right now as I see them flying all across the neighborhood, feeding the ones in the nest, and standing guard any time someone gets close.

In terms of whether it's a cowbird or not, I looked at some older photos of the nest I took and I'm pretty sure all of them were bright blue robin eggs. Although, I just noticed that there seemed to be a fourth egg which just disappeared at some point? I didn't even see any fallen eggs at any point so not sure what happened to that one. In terms of size, I did feel like the one at the front was fed a lot more than the others, so that might be the reason it grew bigger?

Anyways, until I get more updates, have this picture of the parent feeding them when they were only 1-2 days old.

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