Whistling-Cock Indices and Bobwhite Populations in Autumn

Abstract

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Analysis of Survey Data Collected on Bobwhite in Iowa

“…Bennitt (1951) and Rosene (1957) found significant relationships between whistle counts and fall quail harvest and numbers of coveys respectively. Norton et al (1961), however, largely invalidated these findings.…”

Population Responses of the Northern Bobwhite (Colinus virginianus) to Land Use Changes in the Agricultural Landscapes of Ohio, USA

“…Each point was surveyed every 4-7 days. Each unique male bobwhite seen or heard during a 6-min time interval was recorded (Norton et al 1961;Burger et al 2006). The distance to each singing male was estimated up to 500 m on aerial photographs with pre-measured distance rings created in ArcMap 10.1 (Environmental Systems Research Institute, Redlands, CA) to allow estimation of detection probabilities using distance based methods (Burger et al 2006;Rusk et al 2007;Bowling et al 2014).…”

The use of multivariate statistics in studies of wildlife habitat

“…Quail whistle counts were conducted concurrently on the last three of the t:our-surveys of each transect. Audio-counts are ;be~ieved to be reliable indices of the relative abundance of breeding dove (Dolton 1977) and quail (Bennitt 1951, Elder 1956, Rosene 1957, Norton et al 1961, Campbell et al 1973, Brown et al 1978 within relatively large areas.…”