A.C. ZIEBER 1957 MICROTUS CALIFORNICUS FEB 15-17 .7mi.N,2.3mi.E MARTINEZ (SALICORNIA MARSH), CONTRACOSTA CO, CALIF. TOTAL OF TAILS BY CHAR. THIERER IN 90 MUS. SPECS IN 4 NIGHTS. SEE THIS JOURNAL THIS DATE. SALICORNIA AND ONLY VERY FEW GREEN TWIGS ON IT. A FEW BUSHES NO LEAVES (CENTAURIA) + SOME LEAVES HAD BEEN CUT NEAR GROUND BUT OTHERWISE NO GOOD FRESH MICROTUS SIGN. GOT MANY ROTHROS, SOME MUS + SORCY. 1.0mi.N, 2.0mi.E MARTINEZ FEB 17 SET (WITH THIERER) 100 MUS. SPECS ON EXTREME W COAST OF MARSH IN MICROTUS RUNS + GOT 1 ABOUT 11AM ON 16TH WHILE SETTING TRAPS. ON AM. OF 17TH GOT 7 ALMS MANY ROTHROS. ALSO MUS + SORCY. THESE 100 TRAPS WERE IN ADDITION TO THIERER'S 90 AT THE 15-17TH LOCATION. MICROTUS WHO WERE EATING GRASS HERE - NO SALICORNIA (OR VERY LITTLE GREEN SALICORNIA) AVAILABLE NOW BUT PLENTY OF DRY PLANTS MATTING MARSH JUST BESIDE MICROTUS RUNS. THIERER WILL PUT UP MICROTUS AS HE MAY WANT TO DO HIS RESEARCH ON THEM.