Corthylio calendula

Corthylio calendula

The ruby-crowned kinglet is a winter visitor to these parts. One of North America’s tiniest songbirds, it feeds primarily on insects but also eats fruits and seeds. It searches restlessly among the lower branches of shrubs and trees, and its constant wing-flicking is a distinctive trait that helps with identification. Only the males wear the ruby crown.

Feron kingi

Feron kingi

Feron kingi, commonly known as the red cone gall wasp, is a member of the Cynipidae family.

The adult female lays her eggs within the leaves of several white oak species, including the valley oak (Quercus lobata). Once the egg hatches, the larva begins feeding on the leaf tissue, triggering the plant to form a hard, protective structure—a small red cone about 5 mm tall. This gall benefits the insect, providing it with additional plant tissue to consume. Inside the gall, the larva pupates and eventually matures into a parthenogenetic female adult before emerging from the tip of the cone. That’s right — there are no male gall wasps.

Calochortus plummerae

Calochortus plummerae

We found a late-blooming Plummer’s mariposa in a rocky part of Serrano Canyon, as well as running water! We’d crossed the dry creek bed several times on the way up there, so it was a real surprise to see Serrano Creek blurbling along at this point. It seemed a good place to stop for a while, then head back.