Population status

Killdeer
(Charadrius vociferus)

The Killdeer is widespread and very conspicuous. Because it nests in open areas and vocalizes regularly during the breeding season, it is well captured by the Breeding Bird Survey (BBS), which covers a good portion of the species' breeding population. Results from this survey indicate that the species' population has suffered a large decrease since 1970. The rate of this decline has not abated; significant declines are ongoing (2002-2012). Although regional results are not presented here, this nationwide trend is reflected in nearly every regional analysis of the species' status conducted to date in Canada. To the south, the species' status may be more secure, as suggested by BBS results for North America. The continental Killdeer population, which includes both Canadian and American breeders, experienced only a modest decrease since 1970, and that decrease abated during the most recent decade.

 

Breeding Bird Survey (BBS) - Canadian analysis

Additional information on: Breeding Bird Survey (BBS) - Canadian analysis

Table 1: Population trends by geographic area
Geographic areaTime Period Table 1 - footnote 1 Annual trend Table 1 - footnote 2 Intervals Table 1 - footnote3
LowerUpper
Canada Select to view graph of the geographic area: Canada 1970-2012; Breeding Bird Survey (BBS) - Canadian analysis1970-2012-3.2-3.7-2.8
Canada Select to view graph of the geographic area: Canada 2002-2012; Breeding Bird Survey (BBS) - Canadian analysis2002-2012-1.2-2.40
 

Breeding Bird Survey in North America (BBS) - U.S. analyses

Additional information on: Breeding Bird Survey in North America (BBS) - U.S. analyses

Table 2: Population trends by geographic area
Geographic areaTime PeriodAnnual trend Table 2 - footnote 1 Limits
LowerUpper
North America Select to view graph of the geographic area: North America 1966-2012; Breeding Bird Survey in North America (BBS) - U.S. analyses1966-2012-1.1-1.6-0.9
North America Select to view graph of the geographic area: North America 2002-2012; Breeding Bird Survey in North America (BBS) - U.S. analyses2002-20120-0.40.4
 

References