RISB, D.O. 1984 PEROMYSCUS CALIFORNIUS 12 Hastings Reservation, Monterey Co., Calif March 12 This PM on GRID MC caught ♀ 1509 at 8,17 with GREEN visible in its ears (offspring of 1460). March 13 This AM on GRID MC I dusted ♀ 1460, 42.5g, post-lactating, pregnant? with GREEN at 9,18; ♂ 1351, 40g, lactating, w/ORANGE at 9,8. Caught ♀ 1490 with PURPLE visible in ears, tail, feet at 11,5 This PM on GRID MC I caught the following mice w/powder: #1508, st. 11,5, imm ♂, Purple in ears, mouth . #175. #1510, st. 9,17; Im ♀, GREEN all over. # 1111 , st 9,13, scrotal ♂, ORANGE all over. March 14 This AM on GRID MC I caught the following mice w/powder: #040, scrotal ♂, st 10,17; GREEN visible in ears, penis. #1206, scrotal ♂, st 7,4; RED visible in ears, tail # 1490, scrotal ♂, st 9,16; PURPLE? visible in ears - need to confirm see next day this in dark, may be RED - supposed young of ♀♀0100 (red) March 15 Caught #1480 at 9,16 on GRID MC this AM early), and RED powder is barely visible in his ears and around mouth. Conducted the following 2 encounters this am on GRID MC: Home visitor 040 ♂ 1480 ♂ In both cases, the home-breeding individual did most of the approaches (all neutral); but the 1351 ♀ 1497♀ visitor attached & squealed upon approach, elicitng retreats in some cases - bizarre! Finally this am on RC drift fences I dusted the following ♂♂. # 1421, 36.5g, perf, st W-3(in) - GREEN. # 020, 49g, barely lact, preg, St W-4(out) - ORANGE. March 16 Caught ♀ 1481, SAD, st 9,16 This AM with faint Orange in ears/mouth (offspring of 1351) Conducted the following 2 dyadic encounters this am: Home visitor Spent last 3:45min huddled together. Definitely 040 ♂ 0100♀ lact. neutral!! 1110 ♂ 1460 ♀ lact. ♀ slightly more aggressive, definitely not as unneable as above.