Bonaparte's Gull
Chroicocephalus philadelphia (Ord, 1815)
ON
BONGU
5810
Family: Charadriiformes > Laridae
The only gull to nest regularly in trees, this rare but annual visitor from North America looks like a small Black-headed Gull
The name honours Charles Lucien Bonaparte, who made important contributions to American ornithology.
Select a topic for more facts and statistics about the Bonaparte's Gull
BTO RECORDS
BTO RECORDS
Identification
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Browse training coursesStatus and Trends
Population size and trends and patterns of distribution based on BTO surveys and atlases with data collected by BTO volunteers.
CONSERVATION STATUS
This species can be found on the following statutory and conservation listings and schedules.
| IUCN Red List of Threatened Species (global) |
Least Concern 
|
| Schedule 1 license required (to disturb) | No |
| Birds Directive Annex 1 | No |
POPULATION SIZE
We have no population estimates for this scarce species.
| BOU Category | A |
|
First Record
|
Dunbartonshire, 1850 (Antrim, 1848) |
DISTRIBUTION
This species is a rare vagrant and was recorded during Bird Atlas 2007–11 as shown on the map.
-
Britain and Ireland Breeding Distribution 2008-2011.
More from the Atlas Mapstore. -
Britain and Ireland Winter Distribution 2008-2011.
More from the Atlas Mapstore.
Occupied 10-km squares in UK
| No. occupied in winter | 7 |
| % occupied in winter | 0.2 |
DISTRIBUTION CHANGE
This vagrant is too rarely reported to map distribution change.
SEASONALITY
Bonaparte's Gull is a rare vagrant which has been recorded throughout the year.
Movement
Information about movement and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.
RINGING RECOVERIES
View a summary of recoveries in the Online Ringing Report.
Biology
Lifecycle and body size information about Bonaparte's Gull, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.
PRODUCTIVITY & NESTING
Sample sizes are too small to report Productivity and Nesting statistics for this species.
CODES & CLASSIFICATION
|
Field Codes
|
2-letter: ON | 5-letter code: BONGU | Euring: 5810 |
For information in another language (where available) click on a linked name
Links to more studies from ConservationEvidence.com
- Effectiveness of disturbance methods and egg removal to deter large gulls Larus spp. from competing with nesting terns Sterna spp. on Coquet Island RSPB reserve, Northumberland, England
- The effects of culling on attacks by yellow-legged gulls (Larus cachinnans) upon three species of herons
- The eradication of feral cats from Ascension Island and its subsequent recolonization by seabirds
Read more studies about Bonaparte's Gull on Conservation Evidence >
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