Dear Members of the Maryland Birds Listserv, I am a Zoology graduate student at the University of Texas at Austin. I am conducting a study of some bird behaviors and their ecological and morphological correlates using data from the literature and questionaires sent out to experienced birders. Some of the species for which I have data may occur in your area or you may have experience with them. I have listed below the birds for which I need information. The study is a comparative one so I am looking for folks who have experience with both species in any pair. 1) Purple Finch (Carpodacus purpereus) and House Finch (Carpodacus mexicanus) 2) Common Redpoll (Carduelis flammea) and American Goldfinch (Carduelis tristis) 3) House Sparrow (Passer domesticus) and Tree Sparrow (Passer montanus) 4) Orchard Oriole (Icterus spurius) and Baltimore Oriole (Icterus galbula) 5) Northern Mockingbird (Mimus polyglottus) and Grey Catbird (Dumetella carolinensis) The questions asked are fairly short so this would involve a very small time commitment on the part of any respondents. Please E-mail me seperately if you can assist me or have any questions. Thank you for your time and attention. Sincerely, Kate LeVering Department of Zoology University of Texas at Austin Austin, TX 78712 e-mail: klevering@mail.utexas.edu phone: (512) 471-7131 FAX: (512) 471-9651 P.S. I apologize for crossposting this message (many of you have probably received more than one copy) but I am trying to reach a wide audience.