LL WOLF 1964 Columbiginula passerina July 15 Cañon de Lobos, 9mi. E. Cuernavaca, Morelos, Mexico found nest with 2 eggs. Eggs appeared fresh when held toward sun. Nest 5½-6ft up placed on horizontal area where limbs came off a main side branch. Limbs had been broken off. Adult flushed from nest as I walked by on trail beside nest. July 16 Cañon de Lobos, 9mi. E. Cuernavaca, Morelos Mexico 4800± ft. Nest of small sticks + grasses 6½-7 feet up in 8 foot Opuntia on flat, horizontal pad at junction with two other pads. Flushed adult several times during morning so assume contains eggs. On grazed hillside—open with Opuntia + Acacia, + scattered other shrubs. July 21 Cañon de Lobos 9mi. E. Cuernavaca, 4800± ft., Morelos Mexico 10x0- found nest 6½ feet up on horizontal pad (hor) of Opuntia. Adult flushed from slight cup of small twigs + fine lining containing one egg. Had flushed adult 2 days before but unable to find nest as pad sits just slightly above horizontal on S side making it hidden from that side. Area in dense 2nd growth “rock orange” + Acacia up to 8½ feet tall. Herb cover of grasses + annuials. East + north facing slope.