One of the most intelligent bird species, the Common Raven often scavenges food from human sources or from the kills of large predators. It seems to understand the risk of theft, as birds are more secretive about caching food such as eggs and meat when other ravens are around.
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Common Raven
The Common Raven is among the most widespread of birds in Canada, residing year round from the Arctic to most of southern Canada. There are approximately 5.7 million individuals in Canada, representing just under 20% of the global population and a low degree of responsibility for Canada. Data from the Breeding Bird Survey suggest that the Canadian population has undergone a large increase since 1970. Confidence in this status is medium, as the Christmas Bird Count indicates a more stable population. The national population of Common Raven is within its goal range.
The Canadian population of Common Raven is best monitored by the Breeding Bird Survey (BBS), which samples a moderate proportion of the breeding range and has high precision in its estimates. The national BBS trend has increased steadily since the early 1970s. In British Columbia, numbers have largely stabilized since the 1990s, whereas in the Prairies and southern Ontario and Quebec the increases have been largely since the early 2000s and are still accelerating. The only region showing a slight decline since the 1990s is the Maritimes, although even there abundance remains slightly higher than in 1970. The population is also covered well by the Christmas Bird Count, but precision of the Canadian trend is low, so the evidence for little change carries little weight relative to the high probability of a large increase shown by the BBS.
The goal for Common Raven is to remain at or above its recent population level, based on the Breeding Bird Survey. Trend data show that Common Raven is currently within its goal range.
| Designation | Geographic Area | Status | CITATION |
|---|---|---|---|
| IUCN | Global | Least Concern | |
| Wild Species | Canada | Secure |
One of the most intelligent bird species, the Common Raven often scavenges food from human sources or from the kills of large predators. It seems to understand the risk of theft, as birds are more secretive about caching food such as eggs and meat when other ravens are around.
Common Raven is reported nearly uniformly throughout the year in Canada.