It looks like there's only one eaglet in the nest this year at Peebles Island State Park. It's unlikely there's another bird that size hiding in the nest at feeding time.
I know I've been going back and forth between Peebles Island and Cohoes Falls the past handful of blog posts. I promise the next one will be something different. If it's not for some reason, I'll just delete this paragraph.
The usual gear for Peebles Island, the Canon EOS 7D Mark II and EF 70-300mm f/4-5.6 IS USM lens.