'Cause a little bird never tells me anything I want to know, she's my best friend, she's a sparrow

One of the great things about being a biologist is that if anyone ever gets mad at you because they overhear a conversation in which you're talking about great tits, you can always say this:

"I was talking about the bird, silly. Get your mind out of the gutter."

(The same thing goes for when you're doing a google image search)