North American Birds

VOLUME 69 NO2 2016

A Quarterly Journal of Ornithological Record Published by the American Birding Association. The mission of the journal is to provide a complete overview of the changing panorama of our continent’s birdlife.

Issue link:

Contents of this Issue


Page 7 of 139

Figure 7. This image shows relatively well (particularly when blown up on a computer screen) the chestnut underwing coverts that distinguish Collared and Oriental Pratincoles from Black-winged Pratincole. This feature of the bird was seen well by ob- servers in the field as well. Driessen and Svensson (2005) stress that the depth of the tail fork is very useful for identification of pratincoles. Even at its maximum apparent depth, however, the tail fork in juvenile pratincoles is not a useful for distinguish- ing Collared from Oriental Pratincole, as the outer rectrices have not yet grown to their full length. The pattern of the inner primaries, however, is very useful: the inner webs of the inner primaries of Collared are distally paler than the outer webs, diffusely joining the pale edge of the secondaries, as seen in this photograph (cf. Figures 10, 11). Oriental Pratincole never shows such a pattern (Driessens and Svensson 2005). Also in this bird, the outer secondaries are paler than the inner secondar- ies, typical of Collared and not seen in Oriental (Driessens and Svensson 2005). Photograph by Anthony Levesque. Fig. 7 Fig. 8 C O L L A R E D P R AT I N C O L E S AT G U A D E LO U P E 182 N O R T H A M E R I C A N B I R D S in sub-Saharan Africa, where birds described as subspecies fuelleborni, erlangeri, and riparia are resident and/or nomadic across a large area from Sénégal east to Somalia and south to South Africa. Driessens (2005) discusses identi - fication of these Afrotropical subspecies, which can be distinguished from the nominate Pale - arctic subspecies in adult plumages; in juvenal plumages, however, these taxa appear to be indistinguishable in the field. The Guadeloupe birds might be presumed to be of the migra - tory nominate subspecies, more likely to occur as a vagrant, although the nearest point of the species' range to Guadeloupe, at Dakar, Sénégal (about 4690 km from Gaschet Reservoir), lies within the range of both Palearctic and Afro - tropical Collared Pratincole taxa. Discussion Gaschet Reservoir, situated in the northern part of Grande-Terre, is the largest body of fresh water (100 hectares) in Guadeloupe and thus one of the best places in the country to observe waterbirds. The reservoir is surrounded by pas - tures where farmers tether their cows to poles, making the grass very short—an ideal habitat for Collared Pratincole and for migrant American Golden-Plovers (Pluvialis dominica). Indeed, I was in the process of conducting a golden-plover survey when the pratincoles were discovered. This observation establishes a first record for Guadeloupe and only the second record of this species for the Caribbean. The previ - ous report was of a single bird at Barbados first identified 3 November 1996 (apparently pres - ent since mid-October) and last observed 24 June 1997 (Buckley et al. 2009). The bird was in juvenal plumage when discovered, and over the course of its long stay, it molted into de - finitive adult plumage. Brazil has two records of the species, both single adults: one photo - graphed on the Atol das Rocas, in the South Atlantic Ocean 260 km northeast of Natal, on 9 March 1990 (Soto and Filippini 2003), the other photographed at Fazenda Terra da Veia, near Jacanaú, municipality of Caucaia, state of Ceará on 21 April 2015 (Albano 2015). The species is unrecorded in Greenland and known from only one record in Iceland, an ailing bird that landed on a boat off southeastern Iceland (64º 11' N, 14º 23' W) on 7 June 1997; it was taken into rehabilitation but did not survive (Y. Kolbeinsson, pers. comm.). In autumn 2015, several other Eurafrican species were observed in Guadeloupe. On 29 August, a Curlew Sandpiper (Calidris ferru - ginea) was present after the passage of Tropi- cal Storm Erika (H. Borde). On 9 September, a White-winged Tern (Chlidonias leucopterus) was discovered at Port-Louis Swamp (F. Delcroix),

Articles in this issue

Archives of this issue

view archives of North American Birds - VOLUME 69 NO2 2016