R.K.Selander, 1954 O. chiapensis 3mi. SSW Tonala', Chiapas, Mex. 33 March 29 7:00-7:06 - 7:06 one bird entered nest # 2, flew to post for a second, then way down the road to the large green tree on inside of the fence - singing heard just after it flew into that tree at 7:07. 7:07-7:14 - 7:15 - one flew into tree 15 ft. up in dense vegetation between the two nest trees . 7:15/5 another joined the first. 7:25 Two birds at nest # 2, one to ground, other to post, 8:25.5 one on ground to nest through tree = straw. 7:27 other to nest = straw. 3 all at nest. 7:28 one to ground, then the other to ground in a different direction. 7:29. one to nest while two others on ground. One of these flew to nest 3 with straw. End of observations 6:35 P.M.- one worm entered the road nest in the east nest-tree. The big root nest is used every night - while the worms spend a good part of the morning building nest # 2, although occasionally a bird will take a twig to the big root nest.