00:11 © Benjamin Clock | … Male Costa's Hummingbirds dive in a broad U-shaped pattern, while giving a high-pitched accelerating and decelerating whistle. Its vibrant purple cap and throat, with throat feathers flaring out and back behind it head, is cited as its most remarkable feature. In the Sonoran Desert, they visit at least 22 different plant species, but feed most frequently on chuparosa and ocotillo. It has an iridescent violet crown and white patches under their gorged throat and tail. Costa's hummingbirds are the second-smallest North American hummingbird species. Costa's Hummingbirds feed on nectar and small flying insects. Separately, the male will perch and produce similar sounds in his song—except, the song is vocal rather than tai… Theyprimarily feed on nectar taken from a variety of brightly colored, scented small flowers of trees, herbs, shrubs and epiphytes, including the nectar from traditional hummingbird flowers, such as desert honeysuckle (Anisacanthus thurberi), barestem larkspur (Delphinium scaposum), desert lavender flowers (Hyptis emoryi), saguaro flowers (Cereus giganteus), agave, chuparosa, and fairy-duster. Will also feed on sugar-water mixtures in hummingbird feeders. In California coastal scrub they frequently feed at white and black sage, tree tobacco, heart-leaved penstemon, and bush monkeyflower, among others. Instead, it was named after the French nobleman and naturalist Louis Marie Pantaleon Costa. The male Costa’s Hummingbird has mostly green upper parts – its back, sides, and belly. Planted for erosion control and to feed cattle, this aggressive plant outcompetes the native flora needed by the birds. Introduction of non-native buffelgrass, or African foxtail grass, is another problem. The female, … Mostly nectar and insects. Takes nectar from flowers, and will feed on tiny insects as well. They drink nectar from many desert plants, especially chuparosa and ocotillo, and they snap up small flying insects in midair. They measure 2.8 - 3.5" (7 - 9 cm) in length (from bill to tail). Often visits desert natives such as agave, chuparosa, desert honeysuckle, and fairy-duster. The throat patch extends to the sides of the throat. The Costa's hummingbird, remarkably adapted to live in the desert, was not named because of it's uncommon habitat or the spectacular purple gorget. Costa's Hummingbirds will visit hummingbird feeders and backyards with desert-friendly landscaping that includes native flowers. Each high-speed dive will also pass within inches of the female, perched on a nearby branch, which will be accented by a high-pitched shriek that is produced by the tail. Its wings small and black tail and wings. The male Costa's hummingbird's courtship display is a spirited series of swoops and arcing dives, carefully utilizing a proper angle to the sun to show off his violet plumage to impress prospective mates. They weigh between 0.09 - 0.12 oz (2.5 to 3.5 g) - the average male weighs 0.10 oz or 3.05 g and the average female weighs 0.11 oz or 3.22 g.

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