The Peruvian ornithologist Manuel Plenge has just published the 2010 List of the Birds of Peru.
Plenge has followed the classification of South American Classification Committee (SACC). Including its ‘inclusion criteria’ by codes which are described at the end of the list. The species without a code corresponds to the ‘X’ of SACC.
Therefore, the number of species per code is:
X = resident: 1477
E = endemic: 103
NB = nonbreeding resident: 135
V = vagrant: 16
IN = introduced species: 2
EX = extinct: 1
H = hypothetical: 98
Total: 1831
However, there are the following four species which are not in the list of SACC. The explanation lies in the last page in the notes highlighted in color. Theristicus branickii, Calidris ruficollis, Gygis alba and Icterus chrysocephalus. Then the total number of bird species would be 1835.
Two species in the list are no longer considered hypothetical (H) for Peru:
Northern Giant Petrel: Zavalaga et al. (2009) Immature Northern Giant Petrels Macronectes halli visiting the coast of Peru. Marine Ornithology, 37: 237-240.
Magellanic Penguin: Zavalaga et al. (2009) Records of Magellanic Penguins Spheniscus magellanicus in Peru. Marine Ornithology, 37: 281-282.








