Quart 1948 Journal 42 April 29 Mission San deagrio 500 Baza California. We are staying in one of the rooms of buildings attached on the east side to the old mission. A few troops are gar- isoned in the west wing of the building. At least several hundred Tadanda mice roost in the attics and stone niches of the mission. We caught an estimated 50 in hand nets from the attic and doorways of the mission & attached buildings this evening while the crowd of kid and townspeople watched and shouted whenever we made a haul. Murray climbed up on a ladder to a small opening in the stone wall and got a netful of Tadanda after poking into the cavity inside with a stick. Other bats that were disturbed from their roost flew in a large swarm within the mission proper, suckling around the dome and hanging on the altar. At nine P.M. the bats were still flying about within the mission. Dr. Benson and Murray caught a canyon wren in one of the stone pumice in back of the mission. It is probably the one that could be heard before dark singing from the corners and walls of