A swan is an aquatic bird starting with S and having 4 letters.
Tern
loon
Goose
It could be a Plover.
Teal
puffin, or just a bird is a parrot.
Birds beginning with Q:QuailQuebracho crested tinamouQueen whydahQuetzal
The penguin is an aquatic bird. The name contains nine letters.
Uniform Swiftlet and Upland Sandpiper are birds in Australia. They begin with the letter U.
Sparrow is a bird. It is a 7 letter word
Penguins are short-legged flightless aquatic birds. There are some 17 species in the penguin family.
Barbies, birds, bunnies. I will try to think of some more - hope I helped!