LC
Yellow-billed Chough Pyrrhocorax graculus



Justification

Justification of Red List category
This species has an extremely large range and the population size is extremely large, hence does not approach threatened thresholds for the range or population size criteria. The population trend is not known, but the population is not believed to be decreasing sufficiently rapidly to approach the thresholds under the population trend criterion. For these reasons the species is evaluated as Least Concern.

Population justification
In Europe, the total population size is estimated at 218,000-550,000 mature individuals, with 109,000-275,000 breeding pairs (BirdLife International 2021), and comprises approximately 20% of the species' global range, so a very preliminary estimate of the global population size is between 1,090,000-2,750,000 mature individuals, although further validation of this estimate is desirable. In Europe the trend for this species is not known (BirdLife International 2021). As no other data are available to derive trends, the global population trend for this species is unknown.

Trend justification
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Ecology

The species inhabits high-altitude mountain pastures with rocky ravines and cliff faces; above the tree-line in summer and descending into upper valleys in winter. Often found around alpine villages and ski resorts in Europe and breeds chiefly between 1,260 m and 2,880 (Madge and Burn 1993). In North Africa it nests at 2,880-3,900 m and farther east it is found between 3,500-5,000 m and as high as 8,235 m (Madge 2009). Egg-laying occurs mainly in early May to mid-June in Europe and Morocco, in June and July in Lebanon and Kyrgystan and April-June in the north Indian subcontinent (Madge 2009). It often forms a lifelong monogamous pair-bond and partners will remain together throughout year. The nest is built by both sexes and is a bulky structure of sticks, roots and similar, lined with grasses, feathers and moss, typically on a ledge or shelf near the roof of a cave or rock chimney, rock crevice or cliff face. Larger caves with small entrances are favoured. Occasionally uses roof spaces of old buildings, mine-shafts and similar structures. Its diet consists primarily of invertebrates in spring and summer, with a more varied diet in autumn and winter. It will also take small amphibians and reptiles, nestling small birds, eggs and small rodents. In autumn and winter extensive range of seeds, berries and fruits are added to the diet. Also consumes a wide range of discarded human food. The species is largely sedentary, performing daily altitudinal movements (Madge 2009).

Threats

There are currently no known significant threats to this species.

Conservation actions

Conservation Actions Underway
Bern Convention Appendix II. There are no known current conservation measures for this species within Europe.

Conservation Actions Proposed
No conservation measures are currently required for this species within Europe.

Acknowledgements

Text account compilers
Martin, R., Rutherford, C.A.


Recommended citation
BirdLife International (2024) Species factsheet: Yellow-billed Chough Pyrrhocorax graculus. Downloaded from https://datazone.birdlife.org/species/factsheet/yellow-billed-chough-pyrrhocorax-graculus on 22/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 22/12/2024.