Mallard hatching from an egg cracked by freezing
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Abstract
The eggs of early-nesting waterfowl in North Dakota are frequently exposed to subfreezing temperatures. Mallards (Anas platyrhynchos) and Pintail (Anas acuta), normally the first ducks to arrive in the spring, begin limited early nesting in min-April. Nighttime temperatures during this period frequently drop below freezing, and late spring blizzards are not unusual.
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Mallard hatching from an egg cracked by freezing |
Series title | The Auk |
DOI | 10.2307/4083468 |
Volume | 86 |
Issue | 4 |
Year Published | 1969 |
Language | English |
Publisher | American Ornithological Society |
Contributing office(s) | Northern Prairie Wildlife Research Center |
Description | 3 p. |
First page | 752 |
Last page | 754 |
Country | United States |
State | North Dakota |
Google Analytic Metrics | Metrics page |