A New Hybrid Warbler (Dendroica nigrescens × D. occidentalis) and Diagnosis of Similar D. townsendi × D. occidentalis Recombinants

Sievert Rohwer, Christopher Wood, Eldredge Bermingham
2000 The Condor  
doi:10.2307/1369809 fatcat:x3dgmvbynjclngd6djldhx4aaq