As I viewed them through the lens I noticed some differences. Some had shorter tails, but the most telltale sign were their flanges/beaks. Most of them had yellow flanges rather than the adult all black beak. As most of you know baby bird's mouths and flanges are bright yellow or orange or other color so their parents can see their mouths when they are feeding them especially if light is low inside the nest area. We had a whole slew of juveniles and just a few adults mixed in. Enjoy.
|Yellow flanges and notice the shorter tail|
|Adult - notice the longer tail feathers and how the beak is all black|