March 16 night overcast at first (falling rain), then mostly clear. Frost, plus ice on water bucket outside. Calculation of tolerance with Schulteis; in no. of seeds for 40 chicks. #1 - 36.2° - 8.1sec., 27.3° - 12.9sec., 17.6° - 21.65sec., 8.6° - 35.3, 6.3°-42.1 cutout at about 5°. #2 35.7° - 14.0sec., 27.2° - 21.5sec., 17.4°-36.1 8.9-58.0 4.6-76.4 0°-102.4 #3 (Bernstein) 35.3° x 7.17, 26.9° x 14.4, 17.2° x 32.75 Ran some sun-shade tests of a toad with transmitter fed by mouth (easy). Then put him under a big toad-boulder with "runways" under it and monitored him all day. He never came out, and so finally at 7:30 me tried getting gone and retrieved him (and the radio). Also put a radio under a nearby boulder and monitored its temp. Anita watched a small toad come out and bask. Brief rain about middle of day, followed by west wind and scattered clouds. March 17 morning clear. Dan logged-tood sunbason. See my and Dave's species accounts. Basically the lizard went into the sun and stayed there, making only occasional forays into the shade to explore or try to escape + definitely not thermoregulating by a simple in-out movement. The toad slumbered around, some sun, some shade, and ended up in the shade. afternoon- windy from west, no rain, Dave hunted ref streams and collected 1c toad and 2 breeding & unsexable.