A Cattle Egret adds another stick to the nest. Cattle Egrets are colonial nesters and build platform nests near water, so it was no surprise to find them nesting in the heronry at Ibis Pond.
Male and female Cattle Egrets look similar and both parents participate in nest building, but often the male brings the sticks and the female places them; therefore, I'm deducing this is a female Cattle Egret.
...the nestlings seem to be saying something like, "Adding to the nest is all fine and good, but we're hungry. Feed us!"
Here are a few videos of the mama Cattle Egret arranging her nest. In the first video she's adding a new stick and in the second, she's trying to reposition an older twig that doesn't seem to want to budge. Also...in the first video you'll hear a conversation between me and Paul Krusling (the Cincinnati birder and expert herpetologist I had to travel 12 hours to meet! Click here for a previous post on Paul.)