Doubleday's hummingbird

Doubleday's hummingbird (Cynanthus doubledayi) is a species of hummingbird in the family Trochilidae also known as the turquoise-crowned hummingbird. Some taxonomic authorities, such as the American Ornithological Society consider this bird to be a subspecies of the broad-billed hummingbird, while others consider it distinct.

Doubleday's hummingbird
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Apodiformes
Family: Trochilidae
Genus: Cynanthus
Species:
C. doubledayi
Binomial name
Cynanthus doubledayi
(Bourcier, 1847)

Geographic Range

Cynanthus doubledayi is found along the Pacific coast of south-west Mexico.[2]

Diet

Hummingbirds in generally eat;[3]

  • Nectar;
  • Insects;
    • Spiders
    • Larvae
    • Insect eggs.
    • Other such small insects

Insects provide critical nutrients like fat, protein and salts that nectar does not provide.

  • Sap;

Sap is consumed when nectar is unavailable and contains enough scructose to sustain the hummingbird's energy use.

  • Pollen;

Although pollen is not directly consumed an amount of pollen is stuck to the Hummingbird's beak thus being ingested, only about 10% of ingested pollen is actually digested and provides a small amount of protein.

References
  1. Birdlife International (2014). "Cynanthus doubledayi". IUCN Red List of Threatened Species. 2014. Retrieved 12 January 2015.CS1 maint: ref=harv (link)
  2. "Cynanthus doubledayi range map". International Union for Conservation of Nature and Natural Resources. Retrieved 2015-01-01.
  3. Peaker, M. (1990-01-01). "Nutritional requirements and diets for hummingbirds and sunbirds". International Zoo Yearbook. 29 (1): 109–118. doi:10.1111/j.1748-1090.1990.tb03339.x. ISSN 1748-1090.


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