Just Whose Ducklings Are Those?
Podcast |
BirdNote Daily
Publisher |
BirdNote
Media Type |
audio
Categories Via RSS |
Education
How To
Natural Sciences
Nature
Science
Publication Date |
Jul 09, 2023
Episode Duration |
00:01:37

It’s spring, and a female duck swims across a pond with ducklings in tow. Some of the youngsters might not be her own. Wood Ducks and others may lay some of their eggs in other ducks’ nests — or in the nests of other kinds of ducks, like Common Mergansers and goldeneyes. Biologists call this nest parasitism or egg dumping. Perhaps it’s a kind of insurance against the loss of a nesting female’s own eggs or brood. Hooded Mergansers, like this one, are frequent recipients of eggs from other species. It’s a good bet that mother duck has at least one – and maybe more – foster ducklings.

More info and transcript at BirdNote.org

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Eggs in not one, but several, baskets.

It’s spring, and a female duck swims across a pond with ducklings in tow. Some of the youngsters might not be her own. Wood Ducks and others may lay some of their eggs in other ducks’ nests — or in the nests of other kinds of ducks, like Common Mergansers and goldeneyes. Biologists call this nest parasitism or egg dumping. Perhaps it’s a kind of insurance against the loss of a nesting female’s own eggs or brood. Hooded Mergansers, like this one, are frequent recipients of eggs from other species. It’s a good bet that mother duck has at least one – and maybe more – foster ducklings.

More info and transcript at BirdNote.org

Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. 

BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.

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