Survival in wood duck broods

Journal of Wildlife Management



Mortality of wood ducklings (Aix sponsa) from hatching to 6 weeks of age averaged 47 percent during a 4-year study at the Patuxent Wildlife Research Center. Over 90 percent of the total mortality occurred during the first 2 weeks of life. Brood bonds began to dissolve after the fifth week. hlortality after 2 weeks was so low that Class I1 broods were believed to provide reliable estimates of production to flying age. Once-a-week brood censuses proved unreliable in estimating survival, but twice-a-xveek counts were accurate enough to estimate total broods and survival to Class II age.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Survival in wood duck broods
Series title Journal of Wildlife Management
Volume 33
Issue 1
Year Published 1969
Language English
Contributing office(s) Patuxent Wildlife Research Center
Description 73-76
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Wildlife Management
First page 73
Last page 76