Journal 50 Boell 1964 Summary Apr 21-May 30 Continued of Sayara chimalua, 5200 ft. May White-crowned Sparrow, a flock of 20-30 has been around camp since Apr 21. I am surprised that there still is (may 19) at least ten here. They are doing a lot of singing & should be on their way. white-throated Sparrow, 2 seen & collected Lincoln Sparrow, a few present since Apr 21. At least one is still here (May 19). Swamp Sparrow, one collected May 6.