# Grey Gull

> medium-sized gull

**Wikidata**: [Q1265250](https://www.wikidata.org/wiki/Q1265250)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Grey_gull)  
**Source**: https://4ort.xyz/entity/grey-gull


## References

1. Integrated Taxonomic Information System. 2011
2. IOC World Bird List Version 6.3
3. IOC World Bird List Version 7.2
4. IOC World Bird List Version 6.4
5. IOC World Bird List Version 7.1
6. IOC World Bird List Version 7.3
7. IOC World Bird List Version 8.1
8. eBird Taxonomy v2018
9. Clements Checklist of Birds of the World
10. IOC World Bird List Version 8.2
11. IOC World Bird List Version 9.1
12. IOC World Bird List Version 9.2
13. IOC World Bird List Version 10.1
14. Clements Checklist v2019
15. IOC World Bird List Version 10.2
16. IOC World Bird List Version 11.1
17. IOC World Bird List Version 11.2
18. IOC World Bird List Version 12.1
19. IOC World Bird List Version 12.2
20. IOC World Bird List Version 13.1
21. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
22. Freebase Data Dumps. 2013
23. Taxonomy database of the U.S. National Center for Biotechnology Information
24. Global Biodiversity Information Facility
25. [Source](https://avesdomundo.info/todas-as-paginas/Laridae)
26. [Source](https://ec.europa.eu/translation/portuguese/magazine/documents/folha66_separata1_pt.pdf)
27. Avibase
28. Handbook of the Birds of the World
29. UMLS 2023
30. eBird Taxonomy v2019
31. Barcode of Life Data Systems
32. The worldwide variation in avian clutch size across species and space
33. National Library of Israel Names and Subjects Authority File
34. Open Tree of Life reference taxonomy version 3.6
35. [Source](https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm)
36. Aves de Chile
37. CalPhotos