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"bird" is also used as a crossword clue. If that's what you saw, the answer is often fowl (4 letters).
Definitions
watch and study birds in their natural habitat
Word origin
From Middle English bird, brid, from Old English bridd (“chick, fledgling, chicken”), of uncertain origin (see Old English bridd for more). Originally from a term used of birds that could not fly (chicks, fledglings, chickens) as opposed to the general Old English term for flying birds, fugol (modern fowl). Gradually replaced fowl as the most common term starting in the 14th century.
Used in a sentence
“Ducks and sparrows are birds.”
“The level below this is called the Phylum; birds belong to the Phylum Chordata, which includes all the vertebrate animals (the sub-phylum Vertebrata) and a few odds and ends.”
“[…] the foxes have holes, and the brydds of the aier have nestes, but [t]he sonne of the man hath not where onto leye his heede: […]”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer14 curated clues
01“Animal with feathers”4 letters
02“Backyard feeder visitor”4 letters
03“Creature with a beak”4 letters
04“Feathered animal”4 letters
05“Feathered creature”4 letters
06“Feathered flyer”4 letters
07“Feathered nest builder”4 letters
08“Feathered singer”4 letters
09“Nest builder”4 letters
10“Nest-building creature”4 letters
11“Robin or eagle”4 letters
12“Robin or raven”4 letters
13“Robin or sparrow”4 letters
14“Animal with wings”4 letters
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