July 2021
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1 Citation
Ornitología colombiana
The taxonomic position of Ornate Flycatcher (Myiotriccus ornatus) within the Tyrannidae has long beenuncertain. The only nest description available suggested that the nest was an open cup but no formal,detailed description of its nest and eggs has been made. We describe aspects of the breeding biology ofOrnate Flycatcher based on four nests found in Ecuador and three in Peru. Nests are spherical, mossy ballswith a side entrance which are affixed by the back to a solid substrate, 0.8 to 5 m above the ground. Nestattachment and architecture support a close relationship with Nephelomyias and also suggest affinities tothe Pipromorphine clade (Tyrannidae), which includes Corythopis, Pseudotriccus, Mionectes, Leptopo-gon and Phylloscartes. In particular, the nest and nestling of Myiotriccus are most similar to those ofPhylloscartes and Pseudotriccus. Egg coloration, white with cinnamon markings, is also very similar toNephelomyias but suggests possibly closer relationships to other genera in this group. We conclude thatavailable information on the natural history of Myiotriccus provides general support for recent moleculardata but note that more complete genetic sampling of some genera could help to better understand itsrelationships.