In May, I enjoyed new blooms, still-green hills, and the cool shade along the Homestead Trail.  Caterpillars were everywhere, a white-lined sphinx moth caterpillar (Hyles lineata) below, along with lupine seed pods and wild cucumber fruits:

Below, some pipevine swallowtail caterpillars (Battus philenor) on California pipevine leaves (Aristolochia californica).  I also enjoyed seeing the cord moss (Funaria hygrometrica) with red seta (the seta were still yellow-green in March).

Many new wildflowers:

California buckeyes (Aesculus californica) were flowering:

Cold Creek still had clear water flowing: