Bergman, G. 1964. Zum Problem der gemischten Kolonien: Ton band- und Dressurversuche mit Limicolen und Anatiden.

Dilger, W. C. 1962. The behaviour of Love Birds.

Friedmann, H. 1964. History of our knowledge of avian brood parasitism.

Hartley, P. H. T. 1967. Parental care in the Song Thrush.

Hildén, O. 1965. Habitat selection in birds.

Jenkins, D. & Mylne, C. 1962. Aggressive Capercaillies.

King, B. 1962. Captive Antarctic Skua swallowing pink woollen glove.

Pulliainen, E. 1963. Observations on the autumnal territorial behaviour of the Great Spotted Woodpecker Dendrocopos major (L.).

Snow, D. W. 1963. The display of the Blue-backed Manakin Chiroxiphia pareola in Tobago, W.I. Zoologica, N.Y.

Stickel, D. W. 1965. Territorial and breeding habits of Red-bellied Woodpeckers.

Thielcke, G. 1965. Die Ontogenese der Bettellaute von Garten- und Waldbaum-läufer (Certhia brachydactyla Brehm und C. familiaris L.).

Thompson, D. H. & Emlen, J. T. 1966. Parent-Chick individual recognition in the Adelie Penguin.

Tinbergen, N. 1964. Aggression and fear in the normal sexual behaviour of some animals.

Tinbergen, N. (n.d.) On adaptive radiation in Gulls (Tribe Larini). Zoöl.

Tsuneki, K. 1966. A preliminary study on the social ecology and behaviour of the Common Sparrow in a cage.

Tsuneki, K. 1966. Further studies on the social ecology and behaviour of the domesticated Java Sparrow in a cage.