Pygmy swiftlet

The pygmy swiftlet (Collocalia troglodytes) is a species of swift in the family Apodidae. It is endemic to the Philippines.

Pygmy swiftlet

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Apodiformes
Family: Apodidae
Genus: Collocalia
Species:
C. troglodytes
Binomial name
Collocalia troglodytes
Gray, GR, 1845

Its natural habitat is subtropical or tropical moist lowland forests. At under 9 cm (3.5 in), it's the world's smallest swift. These miniature species, pygmy swiftlet of the Philippines weighs only 5 grams. in addition, swiftlets that nest in complete darkness rooted in caves have the ability to position an object by reflected sound, precisely used by animals such as dolphins and bats,This phenomenon is called echolocation.


References
  1. BirdLife International (2012). "Collocalia troglodytes". IUCN Red List of Threatened Species. 2012. Retrieved 26 November 2013.CS1 maint: ref=harv (link)

2. Price, J. J., Johnson, K. P., & Clayton, D. H. (2004). The Evolution of echolocation in Swiftlets. Journal of Avian Biology 35(2), 135–143. doi: 10.1111/j.0908-8857.2004.03182.x

3. Thomassen, H. A., Den Tex, R., De Bakker, M., & Povel, G. (2005). Phylogenetic relationship among Swifts and Swiflets . Molecular Phylogenetics and Evolution, 37(1), 264–277. doi: 10.1016/j.ympev.2005.05.010


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