Shortly after the house finch left his perch a cactus wren flew in and posed in the same spot. Was it class picture day? Would a canyon towhee fly in, a little oatmeal spilled on its shirt? A black-throated sparrow with an unruly cowlick? A white-crowned sparrow with a bright smile and a mouthful of braces? Sadly no, the mixed flock of birds continued to move across the desert so I continued up the trail.