Not recognised by BirdLife International. Considered by some authors to be a subspecies of Tropical Gnatcatcher (Polioptila plumbea). References See References. Files: More Information Articles about the White-browed Gnatcatcher If you would like to read any articles about the White-browed Gnatcatcher... Show Articles (0) No Pictures of White-browed Gnatcatcher If Birdpedia has no pictures of White-browed Gnatcatcher or you would like to see more, then try the following... From BING (3) No Videos of White-browed Gnatcatcher If Birdpedia has no videos of White-browed Gnatcatcher or you would like to see more, then try the following.. From BING (0) Where can I observe this species? Select an area (or leave blank) to see locations where this species has been recorded. Area COSTARICA COCOS All Optional: Complete the following if you wish to restrict the reserve to within a given distance of a location. Please enter the Latitude and Longitiude of a given location together with the maximum distance (km) to display a list of reserves within that distance. You must enter a Latitude, a Longitude and a distance greater than 0. Latitude: (Decimal degrees takes precedence) Deg Min Sec Decimal degrees (Include compass setting or value) N S or GPS help Longitude: (Decimal degrees takes precedence) Deg Min Sec Decimal degrees (Include compass setting or value) E W or Find GPS using Google Maps Distance Bearing N NE E SE S SW W NW Get Sample GPS readings On What Field Trips was this species observed? Select an area (or leave blank), and a date range, to see field trips on which this species has been recorded. Area COSTARICA COCOS All From To Optional: Complete the following if you wish to restrict the reserve to within a given distance of a location. Please enter the Latitude and Longitiude of a given location together with the maximum distance (km) to display a list of reserves within that distance. You must enter a Latitude, a Longitude and a distance greater than 0. Latitude: (Decimal degrees takes precedence) Deg Min Sec Decimal degrees (Include compass setting or value) N S or GPS help Longitude: (Decimal degrees takes precedence) Deg Min Sec Decimal degrees (Include compass setting or value) E W or Distance Bearing N NE E SE S SW W NW Get Sample GPS readings Latest Sightings for White-browed Gnatcatcher Select the Area to restrict the Sightings. Area COSTARICA COCOS All