https://avesdeperu.org/procellariidae/petrel-azul-de-pico-delgado-pachyptila-belcheri/
Petrel-Azul de Pico Delgado (Pachyptila belcheri)
petrel azulpico delgado
https://avesdeperu.org/procellariidae/petrel-azul-de-pico-ancho-pachyptila-vittata/
Petrel-Azul de Pico Ancho (Pachyptila vittata)
petrel azulpico anchode