le Roux, P., Kok, O. and Butler, H. (2013) “Breeding behaviour and breeding success of feral pigeons in the Bloemfontein urban area”, Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;, 32(1), p. 5 bladsye. doi: 10.4102/satnt.v32i1.340.