Snowy Owl Invasion!

Tracking an Unusual Migration

De: Sandra Markle

Narrado por: Book Buddy Digital Media

Late in 2013, snowy owls started showing up in places no one expected to find them - including Florida. What had caused so many of these majestic birds to leave their Arctic home and fly to southern Canada and the United States? Scientists quickly began working to find out. Author Sandra Markle brings together firsthand reports from the scientists involved along with stunning photographs of the owls to explain this rare event, known as an irruption. Follow along as scientists figure out why snowy owls took part in this unusual migration and discover what they learned from the unexpected opportunity to study them up close.

Please note: The original source audio for this production includes noise/volume issues. This is the best available audio from the publisher.

©2018 Sandra Markle (P)2020 Lerner Digital ™

Reseñas de la Crítica

"In 2013, snowy owls made an unusual trip south, but that detour is only part of the story acclaimed science writer Markle shares in her latest book. Markle starts with background information, revealing why so many snowy owls traveled south, and then explains how scientists quickly capitalized on the circumstances to tag the birds and follow their migration routes. The story gains momentum as Markle details the importance of the food chain and provides insight from scientists working with the owls. These interviews and accompanying photographs set the book apart and bring the story to life. The writing is easy to understand and never boring. The main narrative is laid out in full-color spreads, accompanied by photographs (some stock, some provided by the scientists) and maps. Full-page sidebars are differentiated from the main text by changes in backgrounds and typefaces. The distinctions are subtle but make the reading experience flow that much more easily. Similarly, definitions are addressed naturally within the text, providing no interruptions. Markle's author's note ends the tale and is also a good read. She explains how she tracked down sources and why it was important to talk to the scientists. It’s a terrific note that encourages both budding naturalists and science writers of all ages. Verdict: An excellent purchase for STEM collections." (School Library Journal, starred review)

"At the wintry end of 2013, bird watchers and biologists in the northeastern US noticed a peculiar thing: they were spotting high numbers of snowy owls, a bird predominately found in the Arctic and northern Canada. During the 2013-14 winter, however, the owls were spotted even as far south as Florida. For scientists, determining the cause of this irruption - the sudden increase of an animal population in areas it doesn’t usually inhabit - meant taking a look at the environmental factors, such as population boom in lemmings, the owl's primary food source, that led to increased survival rates, and increased competition, among owls. In clearly designed pages featuring frequent, glossy photos, this book introduces the life cycle, usual tundra habitat, and habits of the snowy owl, before it delves into Project SNOWstorm, an initiative which focused on gaining insight into migration patterns. Reasons irruptions occur and advances in technology that allow scientists to glean more knowledge than ever before are thoroughly explored. A solid pick for aspiring biologists and techno fans alike." (Booklist)