BEHAVIOUR

B engtson , S.‐A. 1966. (Observations on the sexual behaviour of the Common Scoter ( Melanitta nigra ) on the breeding grounds, with special reference to courting parties.) B oswall , J. 1966. The roosting of the Pied Wagtail in Dublin. C ade , T. J. 1965. Relations between raptors and columbiform birds at a desert water hole. D unham , D. W. 1966. Maintenance activities of the Rose‐breasted Grosbeak. D unham , D. W. 1966. Reactions to predators in the Rose‐breasted Grosbeak. E lgood , J. H. & W ard , P. 1963. A snake attack upon a weaver‐bird colony. Possible significance of synchronus breeding activity. E llis , R. E. J r . 1966. Agonistic behaviour in the male Starling. F icken , M. S. & F icken , R. W. 1965. Comparative ethology of the Chestnut‐sided Warbler, Yellow Warbler and American Redstart. F ischer , G. J. 1966. Auditory stimuli and imprinting. G oforth , W. R. & B askett , r. S. 1965. Effects of experimental colour marking on pairing of captive Mourning Doves. J. Wildlife Manag. G ottlieb , G. 1965. Imprinting in relation to parental and species identification by avian neonates. H ailman , J. P. 1965. Cliff‐nesting adaptations of the Galapagos Swallow‐tailed Gull. H ansen , E. W. 1966. Squab induced crop growth in ring dove foster parents. H atch , J. J. 1966. Collective territories in Galapagos mockingbirds, with notes on other behaviour. H espenheide , H. A. 1966. The selection of seed size by finches. H olcomb , L. C. 1966. The development of grasping and balancing coordination in nestlings of seven species of altricial birds. H olcomb , L. C. 1966. Redwinged Blackbird ( Agelaius phoeniceus ) nestling development. K eil , W. 1963. Beiträge zur Ermittlung der Fütterungs—frequenz einiger Singvogel. K lopfer , P. H. 1965. Behavioral aspects of habitat selection:a preliminary report on stereotypy in foliage preference in birds. K oivisto , I. & P irkola , M. K. 1964. (On the behaviour on the display ground and the importance of the social display of the Black Grouse ( Lyrurus tetrix ) and Capercaillie ( Tetrao urogallus ).) L asky , A. R. 1966. The manner of feeding fledgling woodpeckers. L ott , D. F. & B rody , P. N. 1966. Support of ovulation in the Ring Dove by auditory and visual stimuli. M oyle , P. 1966. Feeding behavior of the Glaucous‐winged Gull on an Alaskan salmon stream. N ilsson , L. 1965. (Observations of the spring behaviour of the Red‐breasted Merganser). N ilsson , L. 1966. (The behaviour of the Goosander ( Mergus merganser ) in the winter.) N ilsson , L. 1965. (Studies on the preening behaviour of the Goldeneye ( Bucephala clangula ).) O ffutt , G. C. 1965. Behaviour of the Tufted Titmouse before and during the nesting season. P olt , J. M. & H ess , E. H. 1966. Effects of social experience on the following response in chicks. R oot , R. B. 1966. The Avian Response to a Population Outbreak of the Tent Caterpillar, Malacosoma corstrictum (Stretch). S immons , K. E. L. 1965. The ritual world of the Great Crested Grebe. S immons , K. E. L. 1966. Les noces rituelles du grébe huppé. V owles , D. M. & H arwood , D. 1966. The effect of exogenous hormones on aggressive and defensive behaviour in the Ring Dove ( Streptopeliu risoria ).