Clay-colored Sparrow - Langley, BC

Migration is on and we have had some interesting sparrows stop in the Fraser River Delta in the past month. This guy is no exception as he is typically not found near the coast. He was found by a friend of mine attending to the short grass in one of our backyard birding ponds, namely Brydon Lagoon here in Langley. I was commenting to the other birders that had shown me the sparrow when I showed up, that there mush be thousands of these rare birds that make their way through our backyards and we don't know it. They sometimes only stop for a couple of days to refuel and if they are as non-descript as this little guy, only a serious birder might take the time to have a second and third look.  How many times might a Eurasian finch or sparrow make its way through with out a second glance.