sentient

 Birds

Forest Kingfishers

Whooper Swans

Masked Lapwing chick

Regent Bowerbird

Red Browed Finch

Besra

Waterhen

Jungle fowl

Gull

Red-tailed tropicbird

Brown noddy

Chickens

Duck on ice

Mitred Parrot

Swan Lake

Moulting

Meadowlark

Black-browed albatross

Odd one out

Gentoo penguins