[EBB Sightings] Whit-throated Sparrow

This morning I found a White-throated Sparrow near the East Shore Trail at Lake del Valle. The bird is missing it's tail feathers and was with a small group of Golden-crowned Sparrows. Strangely I did not record White-crowned Sparrow on my normal route. 
The lake is full and the creek is running strongly. Western Grebe's are performing their dance on the south end of the lake. Two female Western Bluebirds investigated one of my nest boxes. They took turns sitting on the roof of the box and clinging to the front peering inside.