Koford Cypronyx ludovicianus March 8/1955 NW Weld G., Calif. 4100yds. E. of fence. One shallow unused 50' SE of eastern mort. No area of unused burrows at N4 E. Extimatic colony although some in colony apparently not (plugged).! In mounds I found 3 old shelly C. l.; took measurements of all individuals. Snow now nearly all melted from this quarter section. Some had foraged on flat grass-covered floodplain where no mounds. I set 15 live traps in SW part colony bordering with raked oats. Left there 1:30-at 3:30 none sprung // at 3:30 (30 mph W. wind) colder but well above freezing of 20 cirro-statice overcast. I saw only 2 out in Sec. 22 colony, // From 2:15-3 p.m. I visited the large colony on Orange place (R. 65W) that was poisoned last year, period '54; but I saw no activity (good kill?). // Yesterday Mr. Borr told me that sometimes annual mice came up thich when C. l. poisoned. He thought some good in all animals. On his deer, 4 pasture people sometimes shot C. l. A few years ago one man claimed to have shot 32 in one day. Borr said oldest part of Spring Canyon Dam colony near the pond (a Goodill property). March 9/1955 2/10 cirrus clouds, 20 mph W. wind, 4+15°C. at 10 a.m. at Sec. 22 colony. Apparently none in traps, 6 in next hour now came out near traps except 2 at distance 10 yds. from traps. On the rise in center N. part colony, 9 counted, 6 being in area 5 yds. drain. There 6 10yds. uphill from dam slope. Two others fed on wet ground in bottom where snow had melted. Two came out of an burrow 4 or now 50 yds. ? fed. A robin (Sylviolaque) head pecked out of one of the silkhole or flattest bottom. At 9:50 when I arrived an adult Aquila fl ew up from an ar near grounds in colony, circled 6 rose & soared away. (Mud white on base tail & near wrists). This same (opponent) eagle returned!