Yosgart Ernesto Gutiérrez Serna (born March 15, 1981 in Ruiz Cortines) a.k.a.
"El Pájaro Loco" is a Mexican goalkeeper.
He currently plays for Necaxa in the Liga MX.
He is known for his "chicken hair", but even more for taking Óscar Pérez's spot in Cruz Azul, after a game Cruz Azul lost against Rayados de Monterrey.