On the bike I listen for birds and make sure that I can identify their calls. Sometimes I call back. Teacher! Teacher! Teacher! Says the oven bird.
I moo to cows. Think bad thoughts about starlings.
It drives me a bit nuts if I hear something though that I can't id and have no binoculars to check it out, but I roll on, waiting for the next bird.
Trek Madone 4.7 WSD
Cannondale Quick4
1969 Schwinn Collegiate, original owner
Terry Classic
Richard Feynman: “The first principle is that you must not fool yourself and you are the easiest person to fool.”