# Ptiliogonys cinereus

> species of bird

**Wikidata**: [Q27075343](https://www.wikidata.org/wiki/Q27075343)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Grey_silky-flycatcher)  
**Source**: https://4ort.xyz/entity/ptiliogonys-cinereus


## References

1. IOC World Bird List Version 6.3
2. IOC World Bird List Version 7.2
3. IOC World Bird List Version 6.4
4. IOC World Bird List Version 7.1
5. IOC World Bird List Version 7.3
6. IOC World Bird List Version 8.1
7. HBW and BirdLife Taxonomic Checklist v2
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. HBW and BirdLife Taxonomic Checklist v3
14. HBW and BirdLife Taxonomic Checklist v4
15. IOC World Bird List Version 10.1
16. Clements Checklist v2019
17. IOC World Bird List Version 10.2
18. HBW and BirdLife Taxonomic Checklist v5
19. IOC World Bird List Version 11.1
20. IOC World Bird List Version 11.2
21. HBW and BirdLife Taxonomic Checklist v6
22. HBW and BirdLife Taxonomic Checklist v7
23. The IUCN Red List of Threatened Species 2021.3
24. The Philosophical magazine : or Annals of chemistry, mathematics, astronomy, natural history and general science
25. IUCN Red List
26. Integrated Taxonomic Information System
27. Global Biodiversity Information Facility
28. ZooBank
29. [Source](https://avesdomundo.info/todas-as-paginas/Ptiliogonatidae)
30. [Source](https://ec.europa.eu/translation/portuguese/magazine/documents/folha66_separata1_pt.pdf)
31. Avibase
32. eBird Taxonomy v2019
33. Interim Register of Marine and Nonmarine Genera
34. Oiseaux.net
35. The worldwide variation in avian clutch size across species and space