Male western pondhawks closely resemble blue dasher males, but are larger, behave differently, and usually have green faces.   Male pondhawks, as their name suggests, patrol the margins of ponds at low altitude, and typically perch on low twigs, as these males (the blue individuals) are doing.   I took the pictures with a long telephoto lens from early July to late September at the San Jacinto Wildlife Area near Riverside, and in Bishop (both in California).   In one of the images a small damselfly is sharing the perch with a male pondhawk.   The bright green females were photographed at the Wildlife Area, near Palm Desert, California, or in Desert Center, California.   One is eating a desert forktail damselfly; two others (bottom) are eating another damselfly and a variegated meadowhawk.