Bushtit Bushtit (Psaltriparus minimus) Bushtit Helpers: Accident or Altruism? Cowbird Parasitism on Common Bushtit Nest Gopher Snake Predation on the Common Bushtit Supernumeraries at bushtit (Psaltriparus minimus) nests: Incidence, origins, and proximate causes Incidence and Origins of Supernumeraries at Bushtit (Psaltriparus minimus) Nests DNA fingerprinting reveals monogamy in the bushtit, a cooperatively breeding species Identification of White-headed Long-tailed Bushtit and occurrence in the Netherlands Genetic diversification in the East Himalayas as revealed by comparative phylogeography of the black-throated bushtit and Elliot’s ...