Two sentences for the avian community (8)

I believe the answer is:

birdlife

'the avian community' is the definition.
(avian means relating to birds)

'two sentences' is the wordplay.
'two sentences' can mean two replacements for 'sentence'.
'sentence' becomes 'bird' (slang term for a prison sentence).
'sentence' becomes 'life' (life sentence in prison).
'bird'+'life'='BIRDLIFE'

'for' acts as a link.

I've seen this clue in The Times.

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