Northern Beardless-Tyrannulet /mosquero lampino (Camptostoma imberbe)
Status: Rare to locally uncommon resident in the Valley, primarily in the short stretch of Rio Grande corridor from Bentsen SP to Santa Ana NWR; very rare elsewhere in the Valley in places like Laguna Atascosa NWR. May travel with mixed-species flocks in winter, often vocal; may be seen perching conspicuously in the tops of trees during the breeding season.
Habitat: Dense riparian woodlands.
Best Spots: Most reliable at Bentsen SP, but also at Anzalduas County Park and Santa Ana NWR. At Bentsen SP, to be looked for along the inner loop, the head of the Rio Grande Hiking Trail, and along the Resaca Vieja Trail.
Similar Species: This small, drab tropical flycatcher superficially resembles migrant Empidonax flycatchers, but differs from most by the combination of bushy crest, pale eyebrow, short (blunt) beak, and non-contrasting wing bars.
A speaker symbol next to the bird indicates that it has a sound file available.
All Bird call recordings © John C. Arvin.
Rare Bird Alert
Call (956) 584-2731 to hear or submit an alert.
Nine Unique Locations
A Birder's Eye View of the Seasons in the Lower Rio Grande Valley
Welcome to a birder’s eye view of the seasons in the Lower Rio Grande Valley. Enjoy our annual cycle! The resulting avifauna in deep South Texas is the most diverse north of the Mexican border. The four county area that makes up the lower Rio Grande Valley has recorded over 500 species of birds. This is more species of birds than have been recorded in all but two or three entire states. Small wonder that birders from across the continent make pilgrimages to the region. Happy Birding!
Birds Check List
What is a checklist?
A "Bird Checklist" is a complete list of birds that have been seen or heard in a specific region like Texas or the Rio Grande Valley. Checklists can be used as a personal diary of your travels.
These require Adobe Acrobat to view.
Checklists by site: