Noteworthy records of aquatic birds in the state of Querétaro, Mexico

a systematic sampling of aquatic birds was conducted over a period of two years in the state of querétaro, mexico. twenty nine species have been added to the official list of species for the state, nine of which have few records in the interior of the country: dendrocygna autumnalis, d. bicolor, lophodytes cucullatus, gavia immer, pluvialis squatarola, charadrius semipalmatus, numenius phaeopus, limosa haemastica, and thalasseus maximus.