In male White-Crowned Sparrows, the sensitive period for song learning is:
A. the time during which they produce their
subsong—between 50 days after hatching
and about 250 days after hatching.
B. the time between about 250 and 300 days
after hatching, when they are producing an
imperfect version of their father's song.
C. about 10–50 days after hatching, when
they must hear adult male song if they are
later to be able to sing a proper adult male
song of their own.
D. the time during which, if they are
presented with a live tutor of a closely related
species, they can learn the other species'
song instead of their own.
E. the time during which, if they are
presented with tapes of their own species'
song and the song of a closely related
species, they can learn the songs of both
species.
C
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Answer the following statement true (T) or false (F)