Their appearance is quite similar, so I'm expecting they are the same species of bird. They look like egrets to me, which are common water fowl in the wetlands of Kakadu. However, they may in fact be different species altogether. One has these speckles on the wings, the other one doesn't, by the looks of it.
Can anyone help me ID these birds?
- Where: Yellow Water Region in Kakadu NP, Northern Territory, Australia;
- Size: Not too big, my guess is about 20 to 40 cm from beak to tip of the tail (about a foot or so);
- When: Southern hemisphere's spring, early September; the end of the dry season;
- Time of day: afternoon.