Songbirds’ Numbers Flying South

  • A Nashville Warbler - one of the birds that Matt Etterson heard during this bird count in Canada (Photo courtesy of the US Fish and Wildlife Service)

The numbers and types of songbirds
are dropping dramatically in many areas of
the country. A lot of people are trying to
get a better count on the number of birds
that are still around. Stephanie Hemphill recently went with researchers
on one of the more ambitious bird count projects:

Transcript

The numbers and types of songbirds
are dropping dramatically in many areas of
the country. A lot of people are trying to
get a better count on the number of birds
that are still around. Stephanie Hemphill recently went with researchers
on one of the more ambitious bird count projects:

The jumping off point for this trip is a tiny airport with a grass runway in
northern Minnesota, about 20 miles from the Canadian border.

We fly for 15 minutes, over trees and swamps as far as the eye can see. Down
below we get a glimpse of a moose. And, later, a pair of rare trumpeter swans
in their nest.

The helicopter sets down in what’s known as a floating bog. Its runners are
sitting in six inches of water.

We jump out in knee-high boots and rain jackets, and douse with DEET to try
to keep the mosquitoes away.

I’m following Heidi Seeland, a graduate student who seems to know her way
around a bog.

We’re in knee-deep water. Then it’s thigh-deep Pretty soon it’s waist-deep. I try
to step on a clump of sphagnum moss. But it sinks. It holds onto my boot, and
I’m sitting in water.

Heidi helps me up, and we catch up with the others.

They fan out on different points of the compass. I follow Matt Etterson. He’s an
ornithologist, a bird expert. We slog through the bog for nearly half an hour.
Etterson is aiming for a piece of higher ground, where the trees are a little
taller, better for nesting.

Suddenly he stops. He’s found the spot he was looking for. He sets his watch
for 10 minutes and pulls out a notebook.

Etterson cocks his head this way and that, jotting the names of the birds he can
hear, and the time he hears them. He doesn’t pay any attention to the mosquito
biting the back of his neck. He just listens and takes notes.

“We had a couple of hermit thrush — that’s the singing to the north of us. A
veery called a couple of times to the west of us. A Nashville warbler, and a
couple of western palm warblers, and that was about it. It was pretty quiet
otherwise,” Etterson said.

We trudge through the muck for another 20 or 30 minutes and he repeats the
process.

It’s two hours later, and the three researchers meet at the helicopter landing spot
and compare notes. They’re excited about Etterson’s veery and Nashville
warbler. The others heard a Connecticut warbler and a Lincoln’s sparrow.

They would have been really happy if they’d heard a golden-winged warbler.
It’s one of the most threatened of bird species. The number of golden-winged
warblers has declined by some 80% during the last 50 years.

Today’s trip is an experiment to see how well it works to count birds in remote
places, using a helicopter.

It’ll take five years to finish the bird count here. Then, in 10 or 20 years, they’ll
do it all over again, to see how the birds are faring.

For The Environment Report, I’m Stephanie Hemphill.

Related Links