In the winter, you can often see Northern Harriers in the Wilderness Park. Unlike other hawks that hunt from on high, these unusual hawks fly very low over the ground, looking and listening for rodents. They have a disk-shaped face looks and functions much like an owl’s, with stiff facial feathers helping to direct sound to the ears, and they rely on hearing as well as vision to capture prey.
Last week one was hunting in Johnson’s Pasture and stayed in the same area for more than an hour, allowing your intrepid photographer to snap enough photos that some of them came our more or less in focus.
Here you can see how close they fly to the ground at times.
In the Wilderness Park, you can often look down on them and spot the distinctive white patch on the rump.
This Northern Harrier must have been a female, as the females are brown above (males are grayish) and pale with brown streaks below.
If you see one of these in the Park, take a few minutes to watch it. They’re awesome! They’re not likely to be here too much longer for this year. Although some are sighted in LA County throughout the year, most of the Northern Harriers migrate to the very northern US and Canada for the summer.
For more information on Northern Harriers, check out All About Birds.
The Lorquin’s Admiral is thought to be a Batesian mimic of the California Sister
The Woodland Skippers were all over Evey Canyon on Sunday. Douglas’s Threadleaf Ragwort blooms later than most and attracts a lot of bees and butterflies in late summer and early fall.
This was a two-fer! Both the Stenopogon robber fly and the Western Yellowjacket were new additions to our project. Isn’t the robber fly a fearsome-looking creature?
With its blue iridescent body and coppery elytra, this large, colorful beetle is an amazing tarantula hawk mimic.
There were quite a few of these on the broom in Evey Canyon – four on this plant alone. Who knew there was a moth that used broom as a host plant? We say, “Go caterpillars! Eat broom!”
Friends of the Claremont Hills Wilderness Park 