Literature review of renesting in North American ducks. Cowan,W.F
Material type:
TextPublication details: 1977Online resources: Abstract: Mangement of waterfowl on agricultural lands much involves the utilization of renesting tendencies in ducks. Extensive changes in habitat and destruction of large numbers of nests occurs annually during tillage operations on seed bed and summerfallow fields, and during mowing in hay fields and wild hay cover. Peripheral cover is frequently burned during the nesting season, further reducing available nesting habitat and destroying nests. A large portion of the breeding duck population must then shift to new nest sites or travel to new regions to continue the nesting effort. Renesting in ducks is well known. According to Sowls (1949), Ducks produce but one brood per year but readily renest if the first nest is lost. The questions that arise concerning the Ducks Unlimited agricultural extension program of nesting management on agricultural lands are: 1) what proportion of hens would renest after losing first nests to agricultural activities, 2) how long into the season will ducks renest,
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Electronic Report
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Electronic Library | Non-fiction | COW (Browse shelf(Opens below)) | Available | 877 |
CD# 1 file COW012.PDF
Mangement of waterfowl on agricultural lands much involves the utilization of renesting tendencies in ducks. Extensive changes in habitat and destruction of large numbers of nests occurs annually during tillage operations on seed bed and summerfallow fields, and during mowing in hay fields and wild hay cover. Peripheral cover is frequently burned during the nesting season, further reducing available nesting habitat and destroying nests. A large portion of the breeding duck population must then shift to new nest sites or travel to new regions to continue the nesting effort. Renesting in ducks is well known. According to Sowls (1949), Ducks produce but one brood per year but readily renest if the first nest is lost. The questions that arise concerning the Ducks Unlimited agricultural extension program of nesting management on agricultural lands are: 1) what proportion of hens would renest after losing first nests to agricultural activities, 2) how long into the season will ducks renest,