sentences:  In Burkina Faso, as of 2005, 497 bird species of various families, including 35 rare or accidental species, 12 near threatened species, three vulnerable species (lesser kestrel "Falco naumanni", white-headed vulture "Trigonoceps occipitalis" and Beaudouin's snake-eagle "Circaetus beaudouini") and one endangered species (Egyptian vulture "Neophron percnopterus") have been reported.These cover species under several families such as