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A reassessment of the taxonomy of Crypturellus noctivagus (Wied, 1820)

Barbara Mizumo Barbara Mizumo Tomotani, Luís Fábio Silveira

Abstract


Crypturellus noctivagus noctivagus (Wied, 1820) and C. noctivagus zabele (Spix, 1825) are endemic Brazilian tinamous restricted to Atlantic Forest and Caatinga, respectively. We used plumage, morphometric, vocal and oological characters to examine the validity of these taxa. Presence of sexual dimorphism in plumage only in birds occurring in Caatinga, and diagnostic differences in plumage pattern, tarsus color and egg color and shape allow us to recognize these two forms as distinct lineages, being considered here as Crypturellus noctivagus and Crypturellus zabele. We also provide updated diagnoses, descriptions, and geographic distributions for these two taxa. 


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