The 44,000-hectare (109,000-acre) Lago de Cuitzeo is located in the State of Michoacán and in part of the State of Guanajuato. This federally protected lake, a WHSRN Site of Regional Importance, supports 21,500 shorebirds representing 20 species, including 1.5% of the world population of Black-necked Stilt (Himantopus mexicanus). Other species recorded in high numbers at the lake include American Avocet (Recurvirostra americana), Wilson’s Phalarope (Phalaropus tricolor), and Snowy Plover (Charadrius alexandrines).