[1]Arkivigite je 2011-05-20 per la retarkivo Wayback Machine Greenberg, R, " Feeding neophobia and ecological plasticity: A test of the hypothesis with captive sparrows." Animal Behaviour, Vol. 39, No. 2, (1990), pp. 375-379.
jstor.org
links.jstor.org
[2] Margaret M. Nice; Joost Ter Pelkwyk, "Enemy Recognition by the Song Sparrow" The Auk, Vol. 58, No. 2. (Apr., 1941), pp. 195-214.
[4] James N. M. Smith; Peter Arcese, "Brown-Headed Cowbirds and an Island Population of Song Sparrows: A 16-Year Study", The Condor, Vol. 96, No. 4. (Nov., 1994), pp. 916-934.
springerlink.com
[3]Arkivigite je 2020-02-03 per la retarkivo Wayback Machine James N. M. Smith1, Peter Arcese1 and Ian G. McLean, " Age, experience, and enemy recognition by wild song sparrows", Behavioral Ecology and Sociobiology, Vol. 14, No. 2 (Feb., 1984) pp. 101-106.
web.archive.org
[1]Arkivigite je 2011-05-20 per la retarkivo Wayback Machine Greenberg, R, " Feeding neophobia and ecological plasticity: A test of the hypothesis with captive sparrows." Animal Behaviour, Vol. 39, No. 2, (1990), pp. 375-379.
[3]Arkivigite je 2020-02-03 per la retarkivo Wayback Machine James N. M. Smith1, Peter Arcese1 and Ian G. McLean, " Age, experience, and enemy recognition by wild song sparrows", Behavioral Ecology and Sociobiology, Vol. 14, No. 2 (Feb., 1984) pp. 101-106.
