Two female Passerini's Tanagers (Ramphocelus passerinii) have a heated discussion near Puerto Viejo de Sarapiqui (Costa Rica), 11/98. This species was recently split from the Scarlet-rumped Tanager, creating two species, the Cherrie's which occurs mostly on the Pacific slope and the Passerini's, which inhabits primarily the Carribean slope. The Cherrie's female is much more boldly-colored than the Passerini's, but the males are essentially similar.
To cite this page:
Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2018. The Animal Diversity Web (online). Accessed at https://animaldiversity.org.
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