A male blackbird belts out its summer song from deep within the marsh.
Behind the lens.
Males blackbirds sing from prominant perches to defend their turf from other males. The females pick a male based on the "quality" of the marsh habitat he's defending. Older, fitter males can defend the better, more central areas while younger males are relegated to the less desirable edges.
On a personal note, I like to ask bird experts why this isn't called the Black-bodied Yellowbird. Not once have I been the first person to try this joke on an expert.
birdblackbirdYellowheaded Blackbirdbird songMontanaJohn Ashley