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Evaluation of an extendable pole-net to collect heron eggs in the canopy of tall trees

R. K. Hines·T. W. Custer
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Abstract

A pole, extendable from 2 to 8 m, with a nylon-mesh collecting net, was used to retrieve eggs from nests of Great Blue Herons (Ardea herodias) in the canopy of floodplain forests. A total of 200 eggs was collected for contaminant analysis from ten colonies along the upper Mississippi River during the spring of 1993. Low egg breakage (1%) and acceptable survival of embryos in an incubator to pipping (55%) indicated that the device was useful.

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BibTeXRIS

R. K. Hines, T. W. Custer. 1995. Evaluation of an extendable pole-net to collect heron eggs in the canopy of tall trees. https://doi.org/10.2307/1521409

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