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In broken-wing displays, birds that are at the nest walk away from it with wings quivering so as to appear as an easy target for a predator. [ 13 ] [ 25 ] Such injury-feigning displays are particularly well known in nesting waders and plovers , but also have been documented in other species, including snowy owls, [ 20 ] the alpine accentor ...
Troides helena, the common birdwing, is a butterfly belonging to the family Papilionidae. It is often found in the wildlife trade due to its popularity with butterfly collectors. The butterfly has seventeen subspecies. [2] Troides helena cerberus. Video clip
Optical classification of microstructure in butterfly wing-scales. Photonics Science News, 6, 66–66. Nagypal, Tony. The World of Birdwing Butterflies Archived 2009-02-07 at the Wayback Machine. Haugum, Jan. (1981). Notes on the Aristolochia of the Papuan Region, with particular reference to the larval foodplants of the Ornithoptera. Lep.
Wallengrenia egeremet, the northern broken dash , is a butterfly of the family Hesperiidae. It is found in North America from southern Maine and southern Ontario , west across the Great Lakes states to southeastern North Dakota , south to central Florida , the Gulf Coast and south-eastern Texas .
The scales on butterfly wings are pigmented with melanins that can produce the colours black and brown. The white colour in the butterfly family Pieridae is a derivative of uric acid, an excretory product. [13] [40]: 84 Bright blues, greens, reds, and iridescence are usually created not by pigments but through the microstructure of the scales.
Annie’s broken wing Norris’ fascination with chickens started about a decade ago when his roommate’s 11-year-old daughter asked to raise them and fulfill her dream of becoming a farmer.
The Morpho Menelaus' characteristic iridescent wings has a unique wing structure. The ground scales are covered by a set of longitudinal ridges, and within the ridges are layers of lamella. [12] Because the size of the microstructure is the same as the wavelength of light, the layers in the wings react strongly with visible light. [2]
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