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Hummingbirds have many skeletal and flight muscle adaptations which allow great agility in flight. Muscles make up 25–30% of their body weight, and they have long, blade-like wings that, unlike the wings of other birds, connect to the body only from the shoulder joint. [27]
Anna's hummingbird (Calypte anna) is a North American species of hummingbird named after Anna Masséna, Duchess of Rivoli. It is native to western coastal regions of North America. Until the late 20th century , Anna's hummingbirds migrated from locations as far north as Alaska and coastal British Columbia , returning south to breed in Baja ...
The bee hummingbird's interaction with the flowers that supply nectar is a notable example of bird–plant coevolution with its primary food source (flowers for nectar). [ 4 ] [ 13 ] Flowers that bee hummingbirds often feed from are odorless, have long narrow tubular corolla that are brightly colored, and has dilute nectar.
The violet-chested hummingbird is 11.4 to 13 cm (4.5 to 5.1 in) long. Males weigh 7 to 9.4 g (0.25 to 0.33 oz) and females 4.0 to 10.3 g (0.14 to 0.36 oz). Both sexes have a decurved black bill, with the male's being longer, and a small white spot behind the eye. Adult males have shining grass green upperparts.
Red-billed streamertail Adult male Female Conservation status Least Concern (IUCN 3.1) CITES Appendix II (CITES) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Aves Clade: Strisores Order: Apodiformes Family: Trochilidae Genus: Trochilus Species: T. polytmus Binomial name Trochilus polytmus Linnaeus, 1758 Synonyms Trochilus polytmus polytmus The red ...
The booted racket-tails are a small group of hummingbirds in the genus Ocreatus that was long considered to have only one species, O. underwoodii. They are native to cloud forest edges in the South American Andes and Maritime Andes. They are relatively small (even compared to most other hummingbirds) and primarily iridescent green with white or ...
Allen's hummingbird is a small bird, with mature adults reaching only 3 to 3.5 in (76 to 89 mm) in length and weighing approximately 2 to 4 grams in weight. [3] They are known for their vibrant colors and energetic behaviors, making them a popular subject for birdwatchers and nature enthusiasts.
This species is small, as a mature adult grows to only 3–3.5 in (7.6–8.9 cm) in length, with a wingspan of 11 cm, [10] and an average weight of 3.05 g for males and 3.22 g for females. [ 3 ] [ 11 ] The male has a mainly green back and flanks, a small black tail and wings, and patches of white below their gorgeted throat and tail.