Population status

Gray-crowned Rosy-Finch
(Leucosticte tephrocotis)

The Gray-crowned Rosy-Finch is not well monitored by any Canadian survey because it remains at very high altitude for much of the year. Christmas Bird Count (CBC) data from the wintering grounds in the United States are relevant, because a substantial portion of the Canadian population likely winters in the western United States. CBC results suggest a decrease in the continental population relative to the early 1970s. However, due to the mixing of the Canadian and American populations of Gray-crowned Rosy-Finch in the data and poor precision of the trend estimate, this assessment of the Canadian population is considered to be of low reliability. The Gray-crowned Rosy-Finch is currently below the lowest acceptable level relative to its national population goal (see graph below).

 

Population goal and acceptable levels of variation

Species/groupGoalLower levelUpper level
Gray-crowned Rosy-FinchMean abundance (first 5 years of survey)Goal minus 25% Not applicable

Picture of logo Christmas Bird Count (CBC)

Additional information on: Christmas Bird Count (CBC)

Table 1: Population trends by geographic area
Geographic areaTime PeriodAnnual Trend Table 1 - footnote 1 Limits
LowerUpper
North America Select to view graph of the geographic area: North America 1970-2016; Christmas Bird Count (CBC)1970-2016-1.1-7.54.6
 

References