The Certificado de Nacimiento in Spain is the official document that certifies a person's birth. "Pajaro" is not a recognized term in relation to the birth certificate. It could be a typo or a mistaken reference.
Q: What is a Certificado de Nacimiento?
A: A Certificado de Nacimiento is a birth certificate.
Q: What does Pajaro mean?
A: Pajaro means bird.
Q: What language is spoken in Spain?
A: The primary language spoken in Spain is Spanish.