Behavioral state‐specific resource selection of northern bobwhite chicks

Abstract

AbstractDetermining resource selection rates across life stages of a species is important to enable a comprehensive management approach that focuses on bolstering populations. Moreover, tying these selection rates to specific life‐history needs (e.g., foraging, roosting, loafing) can provide information for management practices. We studied northern bobwhite (Colinus virginianus) chick resource selection on a private property in Brunswick County, North Carolina, USA, to better understand foraging and roosting habitat selection. We tested 2 hypotheses (resource selection is influenced by predator avoidance, resource selection is influenced by food availability) to understand what influences specific resource use. The site was managed intensively for bobwhites using prescribed fire, seasonal mowing and disking, meso‐mammal control, and supplemental feeding. We radio‐tagged 156 chicks between 11–15 days of age from 29 unique brood captures and collected location data of roost sites and daily movement tracks for individual chicks from 2018–2019. We modeled roosting and foraging habitat selection using mixed‐effects conditional logistic regression models under a Bayesian framework. Burned upland pine (Pinus spp.) stands were selected by chicks for foraging and roosting sites. Fallow fields, unburned uplands (1 yr post‐burn), and areas closer to supplemental feed were selected by chicks as foraging habitat. We observed a negative interaction between age and fallow field selection as roosting habitat and age and areas closer to supplemental feed as foraging habitat. Our study results shed light on how circadian habitat use can vary and illustrate that one specific land cover type may not provide ideal diurnal and nocturnal habitat for bobwhite chicks.