Bryant, D M (1979). "Reproductive costs in the House Martin (Delichon urbica)". Journal of Animal Ecology. 48 (2): 655–675. Bibcode:1979JAnEc..48..655B. doi:10.2307/4185. JSTOR4185. Subscription required
Bryant, D M (1975). "Breeding biology of House Martins Delichon urbica in relation to aerial insect abundance". Ibis. 117 (2): 180–216. doi:10.1111/j.1474-919X.1975.tb04206.x.
Lewis, Robert E (1971). "Descriptions of new fleas from Nepal, with notes on the genus Callopsylla Wagner, 1934 (Siphonaptera: Ceratophyllidae)". Journal of Parasitology. 57 (4): 761–771. doi:10.2307/3277793. JSTOR3277793. PMID5105961.
Bryant, D M (1979). "Reproductive costs in the House Martin (Delichon urbica)". Journal of Animal Ecology. 48 (2): 655–675. Bibcode:1979JAnEc..48..655B. doi:10.2307/4185. JSTOR4185. Subscription required
Bryant, D M (1979). "Reproductive costs in the House Martin (Delichon urbica)". Journal of Animal Ecology. 48 (2): 655–675. Bibcode:1979JAnEc..48..655B. doi:10.2307/4185. JSTOR4185. Subscription required
Lewis, Robert E (1971). "Descriptions of new fleas from Nepal, with notes on the genus Callopsylla Wagner, 1934 (Siphonaptera: Ceratophyllidae)". Journal of Parasitology. 57 (4): 761–771. doi:10.2307/3277793. JSTOR3277793. PMID5105961.
Lewis, Robert E (1971). "Descriptions of new fleas from Nepal, with notes on the genus Callopsylla Wagner, 1934 (Siphonaptera: Ceratophyllidae)". Journal of Parasitology. 57 (4): 761–771. doi:10.2307/3277793. JSTOR3277793. PMID5105961.
Kaczmarek, S (1993). "Ectoparasites from nests of swallows Delichon urbica and Hirundo rustica collected in autumn". Wiad Parazytol (in Polish). 39 (4): 407–409. PMID8128730.
Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2021). "Swallows". IOC World Bird List Version 11.2. International Ornithologists' Union. Retrieved 19 July 2021.