Providing evidence to improve practice

Individual study: Use of decoys and vocalisation playback to attract little blue herons Egretta caerulea and cattle egrets Bubulcus ibis to potential nesting habitat at E. V. Smith Research Center, Alabama, USA

Published source details

Dusi J.L. (1985) Use of sounds and decoys to attract herons to a colony site. Colonial Waterbirds, 8, 178-180


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Use vocalisations to attract birds to safe areas Bird Conservation

A trial between 1983 and 1985 in Alabama, USA (Dusi 1985), found that no little blue herons Egretta caerulea or cattle egrets Bubulcus ibis were attracted to a 4 ha swamp which had heron calls broadcast from it. Up to 15 herons and egrets of various species were observed perching or roosting at the site, but none nested. The calls were played on a continuous loop, every three minutes during daylight hours over the summer, and decoys were also installed (see ‘Use decoys to attract birds to safe areas’).

 

Use decoys to attract birds to safe areas Bird Conservation

A trial between 1983 and 1985 in Alabama, USA (Dusi 1985), found that no little blue herons Egretta caerulea or cattle egrets Bubulcus ibis were attracted to a 4 ha swamp which had decoys installed in it. Up to 15 herons and egrets of various species were observed perching or roosting at the site, but none nested. Between eight and 25 decoy herons and egrets were installed each summer and heron calls were broadcast during daylight hours (see ‘Use vocalisations to attract birds to safe areas’).