This afternoon I glanced out the back window and observed this youngster perched on a brushpile I have along our back fence. A few minutes prior to this the yard was filled with a wider variety of bird species than I have observed all winter. Now the diversity was down to two species - this young
Then she started working at the side of the pile.
She must have narrowed down where the bird was hiding and he concentrated on this small area for a while. She wasn't able to pull anything out of here and finally appeared to get frustrated and she quickly darted to the top of the brushpile and began jumping up and down and flapping her wings at which point the House Sparrow she had cornered darted into the nearby hedge. The hawk gave pursuit, but the sparrow had the advantage then and easily outmaneuvered the hawk.
She came back to the brushpile and looked around a bit more, but then retreated to the fence along the backyard where she stayed for a short while before darting into the neighborhood, undoubtedly heading towards the nearest bird feeder.