Science

How Grebes Build Floating Nests That Keep Their Eggs High and Dry

Pied-billed Grebe. Photo: Steve Cronin/Audubon Photography Awards. This audio story is brought to you by BirdNote, a partner of The National Audubon Society. BirdNote episodes air daily on public radio stations nationwide…

The call of this water bird, the Pied-billed Grebe, is unusual isn’t it! Their nests are unusual too – little platforms of plant material that float on water, hidden behind vegetation. We’re with Martin Muller, an expert who loves unraveling the mysteries of Pied-billed Grebes: “Well, there’s the nest…there it is! We didn’t even see it because we were standing on the wrong side of the cattails, so if we step back a little bit…without the bird seeing…us directly staring at it, it’ll carry on.”

Audio program: “This is BirdNote”:

The birds are diving for decaying plant material, picking it up from the bottom of the lake, piling it up until it forms a floating mass. “Now this will gradually sink so they keep adding on to it… and when the first egg is laid, it can be laid in a puddle of water – it will be that flimsy a structure – and then what they do is they add on more plant material on the […]

Recent Posts

Saltwater intrusion will taint 77% of coastal aquifers by century’s end, modeling study finds

Watersheds on the U.S. Eastern Seaboard will be among the areas most affected by underground…

4 days ago

A ‘Devil’ Seaweed Is Spreading Inside Hawaiʻi’s Most Protected Place

An invasive algae has wrecked huge sections of reef in Papahānaumokuākea Marine National Monument. Scientists…

6 days ago

A meadow in the Tahoe National Forest was drying up with sagebrush. Now it’s a lush wetland.

Sardine Meadow is a key link in conservation efforts for the Sierra Nevada, north of…

1 week ago

Conservation & Sustainability: fertilizer nitrates

UC Davis researchers insert a device that continuously collects water samples underground, providing real-time data…

3 weeks ago

Drought Mitigation: Should We Be Farming in the Desert?

Irrigated farmland in the desert of the Imperial Valley. (Photo credit: Steve Proehl, Getty Images)…

3 weeks ago

Scathing report released detailing Navy’s handling of Red Hill fuel spill

The Inspector General of the Department of Defense released some scathing reports Thursday over the…

1 month ago