A study of the facial features, head shapes and bill dimensions of Intermediate (Yellow-billed) Egret Egretta intermedia (top head, and small standing bird); Great Egret Ardea alba (second head); Little Egret Egretta garzetta (third head) and juvenile Grey Heron Ardea cinerea. To be honest, I can't remember where exactly this was from. Birders might be [...]