epub, pdf |eng | | Author:Roger Tory Peterson

BLUE-THROATED MOUNTAIN-GEM Lampornis clemenciae Uncommon, local 5 in. (13 cm). Formerly known as Blue-throated Hummingbird. Note large tail with targe white patches. Male: A very large hummingbird, with black and ...

epub |eng | 2015-01-19 | Author:Richard Cannings

Northern Timberline: The Shrub Tundra The subalpine zone in northern British Columbia (north of Williston Lake) is characterized by tall willow and birch shrubs. Although these shrubs can be difficult ...

epub |eng | | Author:Donald Kroodsma

Explore 43: Song Packages of the Philadelphia Vireo. (See website for details.) Other examples of species that run through most of their repertoire before starting over include the following: Marsh ...

epub |eng | 2014-03-14 | Author:Grant, Peter R., Grant, B. Rosemary

THE POSSIBLE ROLE OF SELECTION ON G. MAGNIROSTRIS Trends in beak size and shape were more the result of gradual accumulated change over several years than the result of occasionally ...

epub |eng | 2013-03-14 | Author:Sarah Swanson

In Oregon Metolius River trails near Camp Sherman Eagle Creek Fish Hatchery near Bonneville Dam on the Columbia River Multnomah Falls near Troutdale Lithia Park in Ashland Tillamook Forest Center ...

epub |eng | 2020-03-16 | Author:Robert Tougias

* * * BESIDES THE BARRED OWLS, which generally fledge in May somewhere far back in the adjacent woods, the first young to appear around my lot are our resident ...

epub |eng | 2014-03-18 | Author:J. Chris Hansen

Wireless radio flash trigger. On the left is the sending unit for the camera, and the receiving unit for the flash is on the right. In a basic hummingbird set-up, ...

epub, pdf |eng | 2011-03-17 | Author:Richard Crossley [Crossley, Richard]

Long-Eared Owl Asio otus LEOW L 15in Uncommon deep inside forest. Melts into the trees— you know they are there, watching you try to find them. Nocturnal, coming out when ...

epub |eng | 2018-03-14 | Author:Sneed B. Collard III

CHAPTER 22 layover birding In planning our Galápagos adventure, we had decided to schedule two two-night layovers en route to Ecuador. The first, in Portland, was to pick up Amy’s ...

epub |eng | 2019-03-13 | Author:Amy-Jane Beer

Perfectly at home – House Sparrows seldom nest more than a few metres from human settlements, and actively prefer buildings in which people still live. Tree Sparrow nest sites The ...

epub |eng | 2019-08-13 | Author:Philippe J. Dubois

12. Did Curiosity Kill the . . . Bird? The Audacity of the Robin FROM BIRTH TO DEATH, a bird’s life is one long series of risks. Flying, finding food, ...

epub |eng | 2017-03-09 | Author:Victor Emanuel [Emanuel, Victor]

13 The Next Generation of Birders Magnificent Hummingbird CHIRICAHUA MOUNTAINS CAVE CREEK CANYON, ARIZONA In 1978, Rose Ann Rowlett was in charge of organizing a hawk watch in September outside ...

epub, pdf |eng | 2016-03-07 | Author:Byers, Clive.

Another large and beautiful member of the parrot family. Rather similar to the Scarlet Macaw Ara macao, but is darker red and can be separated from that species by the ...

epub |eng | | Author:Cooper, William

White-throated Toucan, Ramphastos tucanus. Drawn from a captive bird at a bird-park. Let us assume that you have been successful so far and you have some basic shapes and postures. ...

epub |eng | | Author:Kenn Kaufman

10 This Slice of Sky During my years of obsession with bird migration, I have often brought up the subject in conversations with total strangers. I’ve found that most people, ...