Chantler, Philip; de Juana, Eduardo; Kirwan, Guy M.; Boesman, Peter F. D. (2020-03-04), Billerman, Shawn M.; Keeney, Brooke K.; Rodewald, Paul G.; Schulenberg, Thomas S. (eds.), "Alpine Swift (Apus melba)", Birds of the World, Cornell Lab of Ornithology, doi:10.2173/bow.alpswi1.01, S2CID225975194, retrieved 2022-01-26
Chantler, Philip; de Juana, Eduardo; Kirwan, Guy M.; Boesman, Peter F. D. (2020-03-04), Billerman, Shawn M.; Keeney, Brooke K.; Rodewald, Paul G.; Schulenberg, Thomas S. (eds.), "Alpine Swift (Apus melba)", Birds of the World, Cornell Lab of Ornithology, doi:10.2173/bow.alpswi1.01, S2CID225975194, retrieved 2022-01-26
Chantler, Philip; de Juana, Eduardo; Kirwan, Guy M.; Boesman, Peter F. D. (2020-03-04), Billerman, Shawn M.; Keeney, Brooke K.; Rodewald, Paul G.; Schulenberg, Thomas S. (eds.), "Alpine Swift (Apus melba)", Birds of the World, Cornell Lab of Ornithology, doi:10.2173/bow.alpswi1.01, S2CID225975194, retrieved 2022-01-26