Golden-winged Warbler Working Group

The Golden-winged Warbler Adult Annual Survival Research Collaborative

This collaborative efforts of the GWWASRC aims to develop an integrated population model (IPM) for assessing the population viability and current and future breeding distribution of the Golden-winged Warbler using the latest advances in wildlife tracking technology. Traditional mark-recapture methods have proved insufficient for determining adult female survival – females are more difficult to recapture and detect in the field than male counterparts. Biologists across the Golden-winged Warbler breeding range are deploying VHF-radio tags (Lotek NanoTags) to find the first reliable estimates of female Golden-winged Warbler survival. 

Tagged individuals will be tracked through the Motus network and through ground tracking in subsequent years. NanoTags wills be deployed by collaborators from both the Great Lakes region and the Appalachian Mountain region. Comparisons of estimated annual survival for both tagged birds and control birds will be performed to determine the level of agreement in estimates and for inclusion in the IPM.

Emily Filiberti and Doug Raybuck demonstrate NanoTag deployment during the 2022 training session in Tennessee.
Clifton Avery and Chris Kelly search for returning adults in early spring 2022.
Male Golden-winged Warbler with a NanoTag. Photo: Kurt Ongman
Map of participating study sites indicated by stars. Green depicts the Great Lakes breeding region, pink depicts the Appalachian breeding region.