Swifts and Us: The Life of the Bird that Sleeps in the Sky

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Udemy: Udemy offers iOS 13 & Swift 5 - The Complete iOS App Development Bootcamp, which is a highly-rated bestselling course with hours of video content walking through everything you need to learn Swift. This work collates late-1990s research findings from the field of ornithology to provide a thoroughly modern overview of swift identification and distribution. This edition has revised artwork and maps, and much new textual material." The family name, Apodidae, is derived from the Greek ἄπους ( ápous), meaning "footless", a reference to the small, weak legs of these most aerial of birds. [2] [3] The tradition of depicting swifts without feet continued into the Middle Ages, as seen in the heraldic martlet. Many swifts spend 99% of their time flying, eating and sleeping on the wing, and some never land at all The first book to clearly study the complicated ecology of these birds. With chapters on exploitation, conservation, and birds'-nest cave management. Since the close of the 16th century AD, the edible nests of swiftlets have roused the perplexed curiosity of European travellers to South-east Asia, while at the same time providing one of the most important constituents of traditional Chinese medicine. For both cultures-western and eastern-this book clarifies the nature of these nests, the troglodytic lives of the birds that build them, and the exploitation of this highly valuable natural resource. Borneo is now the world's most important source of wild edible nests. These are built by three species of swiftlets. Regional differences in management of swiftlets in the various limestone caves of Borneo are reviewed. The authors also describe the emergence of swiftlet house-farming, which they see as inevitable. For many readers this section of the book will be of great interest, outlining the hope of an amalgam between a prosperous domestic industry and sustainable management of wild populations."

Books About Birds: Swifts

Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. ISBN 978-1-4081-2501-4. The wingtip bones of swiftlets are of proportionately greater length than those of most other birds. Changing the angle between the bones of the wingtips and forelimbs allows swifts to alter the shape and area of their wings to increase their efficiency and maneuverability at various speeds. [10] They share with their relatives the hummingbirds a unique ability to rotate their wings from the base, allowing the wing to remain rigid and fully extended and derive power on both the upstroke and downstroke. [11] The downstroke produces both lift and thrust, while the upstroke produces a negative thrust (drag) that is 60% of the thrust generated during the downstrokes, but simultaneously it contributes lift that is also 60% of what is produced during the downstroke. This flight arrangement might benefit the bird's control and maneuverability in the air. [12] Codecademy: To learn Swift for free, I’m a huge advocate of Codecademy, which has a free, interactive beginner course on Swift to help you build muscle memory by writing real code. For more on Codecademy’s premium offerings, see my Codecademy Pro review.del Hoyo, Josep; Elliott, Andrew; Sargatal, Jordi; Christie, David A.; de Juana, Eduardo (eds.). "Apodidae". Handbook of the Birds of the World Alive. Lynx Edicions . Retrieved 10 September 2013. The taxonomy of the swifts is complicated, with genus and species boundaries widely disputed, especially amongst the swiftlets. Analysis of behavior and vocalizations is complicated by common parallel evolution, while analyses of different morphological traits and of various DNA sequences have yielded equivocal and partly contradictory results. [4] The second edition of this highly acclaimed book has been extensively revised by the author to take account of recent information, most particularly about the neotropical swifts, and several plates have been revised by the artist.

Swifts and Us by Sarah Gibson | Waterstones

The book includes detailed instruction, ample illustrations, and clear examples. It teaches you best practices from an experienced Mac and iOS developer. The book emphasizes how to use Xcode, Playgrounds, and REPL. Early study of Swifts based on a colony nesting in the tower of the Oxford University Museum of Natural History. The Breeding Distribution and Habitats of the Pied Flycatcher (Muscicapa Hypoleuca) in Britain - Bruce Campbell Thankfully, there are people in the UK and across Europe striving to ensure a future for swifts. Their actions and stories are woven into the narrative, demonstrating how change is brought about by passionate, determined individuals, whose actions show that everyone can do something to keep these superb birds screaming through our skies.

Swiftlets of Borneo: Builders of Edible Nests Lim Chan Koon and Earl Of Cranbroom Natural History Publications (Borneo) Swift for Beginners by Boisy G. Pitre accommodates the evolving features of this rapidly adopted language. The book guides you to write Swift code, using Playgrounds to instantly see the results of your work. It gives you a solid grounding in key Swift language concepts including variables, constants, types, arrays, and dictionaries. Piper, Ross (2007), Extraordinary Animals: An Encyclopedia of Curious and Unusual Animals, Greenwood Press, These are closely related to the treeswifts of the family Hemiprocnidae. There are 4 species of treeswift. Mayr, Gerald (2003). "A new Eocene swift-like bird with a peculiar feathering" (PDF). Ibis. 145 (3): 382–391. doi: 10.1046/j.1474-919x.2003.00168.x. Archived from the original (PDF) on 2016-03-03 . Retrieved 2013-10-27.