This is Bird Note.

The melancholy courtship calls of a Pacific loom carry across a tundra lake near Nome, Alaska.

Many water birds that spend their winters along the coast of the lower 48 migrate to arctic

ponds and lakes like this one in the summer to breed.

Their voices evoke the landscape of the far north.

Listen as a red-throated loom calls as it emerges from the lake's reedy edge.

The eerie moan of a black scoder travels across the surface.

Along tailed duck, yodels.

Red-necked greebs braze raucously in a courtship display.

Finally, from the surrounding tundra, a pair of sand-heeled cranes do it.

Arctic summer days are long, and the bird's courtship calls go on for weeks.

It's an annual symphony unlike any other.

For Bird Note, I'm Michael Stein.