The Hamilton–Zuk hypothesis predicts that ornament expression is a signal of the ability of individuals to resist parasite infection. Thus, across a population (i.e. between-individuals) more ornament
A dataset containing 3540 species occurrences available in GBIF matching the query: { "and" : [ "TaxonKey is one of (Accipiter superciliosus (Linnaeus, 1766), Anabacerthia amaurotis (Temminck, 1823),
The avian genus Calandrella (larks) was recently suggested to be non-monophyletic, and was divided into two genera, of which Calandrella sensu stricto comprises 4–5 species in Eurasia and Africa. We a
Exchange of vocal signals is an important aspect of animal communication. Although birdsong is the premier model for understanding vocal development, the development of vocal interaction rules in bird
