SEROLOGICAL RELATIONSHIPS AMONG SOME NORTH AMERICAN THRUSHES

Abstract

Muscle and serum proteins were used in Photronreflectometer precipitin tests to determine the serological relationships among six species of North American thrushes. The wood thrush, Hylocichla mustelina, not only showed greater serological correspondence (96%) to the American robin, Turdus migratorius, than it did to the other species tested, H. guttata (56%), H. ustulata (51%), H. minima (70%), and H. fuscescens (71%), but the wood thrush – robin relationship was closer than that seen to exist between any two of the other four species.