Back to the boobies!

Hi. I found the answer to Savannah pd.1's question about the differences between male and female blue-footed boobies. In the case of the Blue-Footed Booby, the females are slightly larger than the males. Though the males tails are usually a little bit longer than a females tails. But these characteristics are hard to notice normally. The best way to tell the difference is by the sound it makes. Males make a whistle-like sound. But the females make more of a croak-like sound.

Thanks,
Daniel Kutzik pd.1