From The First Angelinos: The Gabrielino Indians of Los Angeles by William McCawley (Malki Museum Press, 1996):
Other important observations made by the Spanish in 1602 describe Gabrielino religious practices. Near Isthmus Cove on Santa Catalina the Spaniards o0bserved "a place of worship or temple where the natives perform the sacrifices and adorations." According to Father Antonio it
was a large flat patio and in one part of it, where they had what we would call an altar, there was a great circle all surrounded with feathers of various colors and shapes, which must come from the birds they sacrifice. Inside the circle there was a figure like a devil painted in various colors, in the way the Indians of New Spain are accustomed to paint them. At the sides of this were the sun and the moon. When the soldiers reached this place, inside the circle there were two large crows larger than ordinary ones, which flew away when they saw strangers, and alighted on some nearby rocks. One of the soldiers, seeing their size, aimed at them with his harquebus [matchlock rifle], and discharging it, killed them both. When the Indians saw this they began to weep and display great emotion. In my opinion, the Devil talked to them through these crows, because all the men and women held them in great respect and fear.