U. M. Dyzador 1978 El Jir, 230 m., 19.5 Km. NNE Encarnacion by road, Dpto. Itapua, Paraguay. 10 September paths between the gravel pit and the hotel. I then sat near the swimming pool near buildings #1 and 2, listening for dusk singers (I only heard short series of thrush songs). I returned to my room at 17:50. This morning at 07:00 the Gray- breasted Martins (Progne chalybea) were perched in the trees in front of building #1, calling. They were flying around the porches of the rooms and circling the swimming pool in front of the building. This is the first time they have been so visible and vocal in the morning. 11 September The weather today was the same as that of yesterday, only a little warmer. From 05:45 to 07:30 I took the following route: around the hotel grounds, down the road to the highway, down the highway (to Encarnacion) to the road to Becker's forest, down the road to Becker's to the airstrip, down the airstrip and back to the hotel. At 08:20 I started out on the Bamboo Trail. I turned back at 09:00 and