Ribble, D.O. 1989 Peromyscus californicus 18 Hastings Reservation, Monterey Co., Calif April 6 (cont) Cought ♂ #0400, scrotal, st 10.15 covered with Blue-Green powder On GRID MC this PM we caught ♂ #1480 at st. 9,10 covered with ORANGE powder. * This is strange, 1480 is offspring of ♀ 020 (RED) and not ♀1351 (ORANGE). Will need to double check Data !! April # 1530 ♂ Lakeside, 30g Ear-tagged. RC drift fence St E-7 m - 7 April(m). Tissuescell No sign of powder: immigrant April 7 Caught ♀ 020 st 11,5 this AM on GRID MC and she was definitely lactating. On GRID MC caught ♀ 1351, [illegible] 41g, st 9,8. On GRID RC this AM caught ♂ #0130, scrotal, st 5,11; radio-collard him Ch #7, and dotted his tail and body with liquid paper to distinguish him from his ♀ mate (1225). Also we recaptured ♂1225 st. 4.9, Ch# Radio-collared ♂ #1257, st 4,8, (mate of ♀020) Ch #12 and also dotted him with liquid paper (1700h) We returned to GRID RC to try and get the fiber-optics on a location for ♂ #0130 (male of 1225). The location was ~6.2, 10.5; on the south side of the stream bank, ~1m high. The hole into the bank was about 10cm wide by 5cm high and a nest was visible with the flashlight ~ 12cm inside (couldn't reach in with hand). David set up the fiber optics which enabled us to look inside. The nest looked maintained, but no sign of any mice - telemetry indicated the male was moving around, so he probably escaped down some tunnel. No sign of the ♀ (her collar isn't working !). This PM on GRID RC we removed the radio from ♂ #040 (chewed, but repairable) and re-collared ♀1225 Ch #18, and dusted her before releasing at st 6,10. April 8 Still out this evening on GRID MC, caught ♂# 1212, 36.5g, scrotal