crow, hawk, lark, wren, dove, duck, swan, tern, ibis, loon.
Tern
Rhea.
robin
A duck and a swan are both water birds with four letters.
Aves is a 4 letter word for birds. It is a class of vertebrates comprising the 9000 species of birds.
Some sea birds with four letters are: - Erne - Tern - Gull
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moth
Mohawk
group a flock covey
No US states have a capital with only 4 letters; they all have 5 letters or more.
Peru is a South American country with a name that is 4 letters long.