Birders who carefully keep bird records by county or state will be aware that the New Mexico-Texas state line is east of Texico Marsh. There is an eBird hotspot in Texas, Parmer Co.--State Line rd. at Farwell Country Club, that may be used to report birds seen on the Texas side of the state line.

Texico Marsh is on the north side of the community of Texico. The marsh is on the New Mexico side of the New Mexico-Texas border.