
Things I learned on this hike—the Sepulveda Dam wall is 3 miles (5 km) long, and you can climb onto it. When the basin floods, fish are stranded on the trails. Egrets eat other birds!

I’m a total sucker for a bird with spots, so of course the gorgeous Northern Flicker is one of my faves. I was so happy to hear and see them on Friday’s hike.

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.