Found parts of egg shells in 2 different places in the "stone floor barn" where 2 barn owls live. They seemed to be from 2 different eggs but I don't know for sure.
Barn Owl in trees along the "hanging gardens"
Lechuza común, presenta disco facial en forma de corazón, con colores cafe y gris en plumas dorsales
Periferia Presa Constitución 1917
San Juan del Río, Querétaro
Laura Uribe, Grupo Vasconcelos
Barn-owls (family Tytonidae) are one of the two families of owls, the other being the true owls, Strigidae. They are medium to large sized owls with large heads and characteristic heart-shaped faces. They have long, strong legs with powerful talons. They also differ from Strigidae in structural details relating in particular to the sternum and feet.