Mayhew 1958 Journal. 75. Apr. 20 Field Trip to Palm Desert, Riverside Co., Calif. couldn't get around the water flowing down the bottom. The temperature recorded for Indio today was 109°F, for La Quinta, 108°F, So it must have been at least 110°F in the canyon or higher. Unfortunately, we didn't have a thermometer along to check. At any rate, it was quite warm, especially when we got very far away from the stream. Turkey vulture Animals seen in the canyon were: Mourning dove White-throated swift House finch Dipsosaurus dorsalis Cnemidophorus tigris Crotaphytus collaris Hyla arenicolor Uta mearnsi Bufo punctatus Gambel quail Uta stansburiana Sauromalus obesus One C. collaris was marked & released in the canyon - 1 was brought back to UCR. One Uta mearnsi was caught & brought back, as one Dipsosaurus dorsalis. The 1 Xantusia that was captured in the Sanctuary was toe-clipped and released. We also marked 2 Callisaurus draconoides, 5 Perscognathus longimembris, 2 Uta graciosa & 2 Ute stansburiana at the Sanctuary and released them. In Deep Canyon, we marked & released: 1 Crotaphytus collaris