Bluebirds Shout Their Songs When it Gets Noisy
When it gets too noisy , male eastern bluebirds ( Sialia sialis)will alter the loudness and pitch of their songs . Like us , they start holler , and in existent - clip too , according to new finding print inIntegrative and Comparative Biology . old studies have shown that boo in noisy places tend to blab out differently than their counterparts live in quieter areas . But it ’s been unclear just how immediately these shifts happen ....