The dusky-capped flycatcher, known scientifically as Myiarchus tuberculifer, is a member of the tyrant flycatcher family. This avian species presents a modest stature, measuring approximately 18 cm in length and weighing around 19.4 grams. Its plumage is characterized by brown upperparts, while the head is a darker, almost blackish shade with a subtle crest. The breast is a soft grey transitioning to a vibrant yellow belly. The wings and tail feathers are brown with lighter outer webs. Both male and female dusky-capped flycatchers share a similar appearance, though juveniles can be distinguished by rufous edges on their wings and tail.
When attempting to identify the dusky-capped flycatcher, look for its smaller size relative to similar species, its blackish head, and its distinctive call. This bird can be best distinguished from its congeners by these characteristics.
The dusky-capped flycatcher is known to breed in forests and various woodlands, demonstrating a preference for these lush environments.
This species has a broad range, extending from southern Arizona and the Chisos Mountains in Texas, all the way to northern Argentina. It is also found on the island of Trinidad. While largely resident throughout its range, those that breed in the United States migrate to Mexico to overwinter.
The dusky-capped flycatcher is a resident bird in most of its range, but those that breed in the United States migrate to Mexico during the winter months. It is an adept insectivore, catching its prey by flycatching among the middle branches of trees.
The call of the dusky-capped flycatcher is a distinctive, sorrowful descending whistle, often transcribed as "peeur" or "wheeeeeu," which is crucial for its identification in the field.
Nesting occurs within tree cavities, where the dusky-capped flycatcher lays a clutch of typically three buff eggs, adorned with brown markings. The fledglings emerge from the nest approximately 13 days after hatching.
While primarily insectivorous, the dusky-capped flycatcher occasionally supplements its diet with fruits, particularly during the winter months. It has been observed consuming fruits from the gumbo-limbo tree and, less frequently, from Cymbopetalum mayanum.
The dusky-capped flycatcher is currently classified as Least Concern by the IUCN Red List, indicating that it is not at immediate risk of population decline or habitat loss at a global scale.