These chicks mean business when it comes to food. There was lots of wrangling going on, and this parent shows what might be a beak injury from my guess and yours: junior! I liked this image bc the nicitating membrane wasn't visible. I wish there was more head turn from the chicks to see more of their eyes, but then i wouldn't have this head on behavior...
1D-x
600mmII
ISO 1000
6.3
1/2000