
Mourning dove (Zenaida macroura) dozing on his (?) nest, midafternoon, April 11, 2010 © BCP 2010 Lately, I’ve been wondering how birds tell time. No, seriously. How do they know when to hand off incubating duties to the other spouse? Yesterday afternoon at the beach, I noticed that our bay’s male swan, Tycho, was devotedly […]