Calidris himantopus

Calidris himantopus (MGT): breeds in northern Alaska east to Victoria Island and west and south to Hudson Bay in Canada. It migrates to South America (northern Chile, Bolivia, Brazil, northern Argentina and Uruguay) in winter and small populations winter in southern USA (van Gils & Wiersma, 1996). Its flyway seems to go from Venezuela straight to the Upper Amazon and Central Brazil, reaching the Atlantic coast in RS (Sick, 1997). Females start migrating from the second week of July on, males start a week after, and juveniles only in mid-August. The return flight is over the coast of Colombia and Venezuela. It reaches the USA in April and the breeding areas in Canada in late May. Males arrive two days before females. Some individuals remain in the wintering areas all year round, but they usually migrate in groups as large as hundreds of individuals (van Gils et al., 2016c). In Brazil, records are centered in the period between September and April and show the presence of this species in Amazonian regions – AM, PA and RO (WikiAves, 2016; MZUSP; MPEG) – in southeastern and southern Brazil – RJ, SP, PR, SC and RS –, in the Pantanal – MT and MS –, and in CE, RN and PE in northeastern Brazil (WikiAves, 2016).