Baby little blue herons at various ages.
Above are almost grown tricolored herons.
A snowy egret was watching her eggs. They had not hatched yet.
Baby house sparrows were being fed. The nest was high up in the roof of the ticket booth. I heard the babies chirping as I walked in and stopped to snap the above.
Besides the usual animals you see at the zoo, you can usually find wild baby birds growing up in the spring at Lowry Park Zoo. I found all of these in late May.