Page 



Animal control methods 55 



Physiology in bird control 55 



New avicide for starlings and blackbirds 55 



Curtain spray for control of roosting birds 56 



Fourth year of blackbird study completed 56 



Breeding redwing populations in Arkansas 57 



Scare devices 57 



Decoy trap for blackbirds and starlings 58 



Bird behavior studies implemented by banding 58 



Sudan dye for tagging birds 59 



Gull populations in southeastern New England 59 



Seagull problem at Naval air station relieved 60 



Bird hazard survey at Washington National Airport 60 



System developed for rating chemicals 60 



Antifertility agents have promise in predator control 60 



Compound S-6999 shows specificity for commensal rats 60 



Registration of DRC-714 as a pocket gopher control 61 



Nutria studies progressing 61 



Pocket gophers injurious to Christmas trees 61 



New method of testing seed protectants 61 



Classification, distribution, and life-history studies 62 



North American mammal collections 62 



Bird and mammal specimens handled 62 



Sea otter studies 62 



Wild turkey monograph 62 



Preparation of bat banding manual 62 



Geographic variat ion in Canada geese 62 



Methods of determining sex of cranes 64 



Taxonomie review of the woodpeckers 64 



Variation and hybridization in flickers 64 



Fluorescence studies 64 



The Mammals of Maryland 64 



Walrus studies 65 



Cooperative Wildlife Research Units 65 



Wildlife graduates at Unit schools 65 



Employment of 1962-63 graduates 65 



Appendixes 66 



A. Organization chart 66 



B. Location of Wildlife Research Stations (map) 67 



C. Funds available 68 



D. Bureau and Division offices related to research 69 



E. Publications, 1963 72 



