As you might expect, there is a chapter dedicated to the Swifts that breed in the tower of the Oxford Museum of Natural History, so famously brought to wider attention by David Lack and the film by Derek Bromhall. but at its heart it’s about a new relationship that feels so fragile that one wrong move could break it. In an explanatory note, he says: “This is not strictly a book of science but the hybrid form that is conventionally associated with the term ‘nature writing’. The choice between a stable partner and screaming and fighting and kissing in the rain with your first love is at the heart of Swift’s song ‘The Way I Loved You’, and while we can’t help feeling that, like Peter, Swift’s new beau seemed perfectly fine (sensible, respects her space, gets on nicely with her parents), both Swift and Miranda Cowley Heller know well that the heart wants what it wants. Until 1943, when hunters in a Peruvian rainforest flushed out 13 ringed birds from a hollow tree, observers north and south of the equator had no idea where swifts went for half of the year, and we’re still not much the wiser.

Swift Programming Language (Swift 5.7‪)‬ - Apple Books The Swift Programming Language (Swift 5.7‪)‬ - Apple Books

The eggs hatch after 19 to 23 days, and the young leave the nest after a further six to eight weeks. This specification marks a new foundation in iOS/Mac development, where the shackles of distractingly bad language design (merging two wholly-separate languages) and aggressively unclear syntax have been discarded. Yet for all their adaptability and longevity swifts have recently been added to the UK’s Red List of endangered birds.The nests are composed of interwoven strands of salivary cement and contain high levels of calcium, iron, potassium, and magnesium. The book teaches you through numerous concrete examples, enlightening explanations, and engaging exercises.

The Screaming Sky by Charles Foster (paperback) - Little

The book discusses the concept of data types, variables, constants, loops, decision making, functions, operators, object-oriented programming features, etc. I always recommend pairing your book with another learning resource, like an interactive or video course, for maximum absorption. It gives you a solid grounding in key Swift language concepts including variables, constants, types, arrays, and dictionaries. Taxonomists have long classified swifts and treeswifts as relatives of the hummingbirds, a judgment corroborated by the discovery of the Jungornithidae (apparently swift-like hummingbird-relatives) and of primitive hummingbirds such as Eurotrochilus.Given the title of Greene’s novel, it will hardly come as a surprise that The End of the Affair is about the devastation caused by a relationship ending. The nest of many species is glued to a vertical surface with saliva, and the genus Aerodramus use only that substance, which is the basis for bird's nest soup.