The most common and most likely answer to this crossword clue is the 6 letter word PIGEON
I've seen this crossword clue in Independent
P
I
G
E
O
N
More clues leading to the result PIGEON
- Homer perhaps with good information about Odysseus’s origin
- One’s particular responsibility for bird
- Unlikely flier, one strange bird!
- Iron Age bird
- Simplified language broadcast for baby
- . Reporter’s crude language causes concern
- Opine about gripping head of game bird
- What’s good in dish with pastry covering?
- Detective with details about ordinary victim
- Animal needing a long time to become a proficient flyer
Buddy explains!

The straight part
We know that "bird" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bird = pigeon.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does PIGEON mean?
PIGEON noun- One of several birds of the family Columbidae, which consists of more than 300 species.
- The meat from this bird.
- A person who is a target or victim of a confidence game.
- Concern or responsibility.
- A pacifist, appeaser, an isolationist, a dove.
- To deceive with a confidence game.