The Bald Eagle has a varied diet, and has been documented eating prey from crabs to herons; it is also a scavenger. Bald Eagles typically return to the same nest year after year, adding to them over time, with some eventually weighing hundreds of kilograms.
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Bald Eagle
The Bald Eagle breeds across much of Canada, reaching its highest concentrations along the west coast. It winters from southern Canada through the United States. There are approximately 110,000 individuals in Canada, representing 55% of the global population and a high degree of responsibility for Canada. At least another 10,000 individuals breeding in Alaska likely also migrate to or through Canada, boosting the total to 60%. The Breeding Bird Survey, Christmas Bird Count, and multiple Canadian observatories contributing to the Raptor Population Index all show large increases, allowing for very high confidence in this status. The national population of Bald Eagle is within its goal range.
The Canadian population of Bald Eagle is monitored fairly well by both the Breeding Bird Survey (BBS) and the Christmas Bird Count (CBC). Overall, the BBS provides a slightly more reliable indicator of the Canadian population for regions where coverage is moderate or high. The CBC has better coverage overall, but interpretation is somewhat complicated by inclusion of individuals that remain in the United States year-round. The BBS shows an average increase across Canada of more than 800% since 1970, ranging from around 400% along the Pacific coast to over 4000% in central and southern parts of Ontario and Quebec and in the southern Prairies. These trends are corroborated by the CBC, which indicates a long-term increase in the continental population of more than 600%. Both the BBS and CBC show ongoing population growth at a relatively steady rate. Although each source has only medium reliability because of limitations in coverage, the agreement of the trends and the magnitude of the increases allow for very high confidence that the population has undergone a large increase. This is further corroborated by results from four Canadian sites contributing to the Raptor Population Index, which have medium reliability since at least 2000, and all of which have shown increases of more than 300%.
The goal for Bald Eagle is to remain at or above its recent population level, based on the Breeding Bird Survey. Trend data show that Bald Eagle is currently within its goal range.
| Designation | Geographic Area | Status | CITATION |
|---|---|---|---|
| IUCN | Global | Least Concern | |
| Wild Species | Canada | Secure |
The Bald Eagle has a varied diet, and has been documented eating prey from crabs to herons; it is also a scavenger. Bald Eagles typically return to the same nest year after year, adding to them over time, with some eventually weighing hundreds of kilograms.
Bald Eagle is reported nearly uniformly throughout the year in Canada.