Answer:

finch

Answer	Crossword Clue
FINCH	Little songbird
FINCH	Bunting, for one
FINCH	"Network" actor Peter or a songbird

FINCH	"To Kill a Mockingbird" lawyer Atticus
FINCH	Sparrow relative
FINCH	Bird studied by Darwin
FINCH	Small songbird
FINCH	Sparrow or canary, e.g.
FINCH	Canary, for one.
FINCH	Songbird.
FINCH	H.E.W. Secretary

FINCH	Small bird.
FINCH	Small bird
FINCH	Songbird
FINCH	Serin
FINCH	Redpoll or siskin
FINCH	Canary, e.g.
FINCH	Peck's Oscar role
FINCH	Bunting or sparrow

FINCH	Seedeater, say
FINCH	Purple ...
FINCH	"What It Is to Burn" band
FINCH	Bird whose beak inspired Darwin's theory of evolution