Bird Fact Friday – How do hawks fly such great distances?

From page 7 of Hawks from Every Angle:

Several factors influence the migratory pathways of raptors, including geography. Mountainous sites are famous for attracting concentrations of migrating hawks, in part because as wind strikes a ridge it is deflected upward, providing birds with a current of air—or updraft—along the ridge for more energy-efficient means of travel. Raptors can travel along these updrafts for miles, covering great distances with little to no effort.
Hawks from Every Angle: How to Identify Raptors In Flight
Jerry Liguori
Foreword by David A. Sibley

hawksIdentifying hawks in flight is a tricky business. Across North America, tens of thousands of people gather every spring and fall at more than one thousand known hawk migration sites—from New Jersey’s Cape May to California’s Golden Gate. Yet, as many discover, a standard field guide, with its emphasis on plumage, is often of little help in identifying those raptors soaring, gliding, or flapping far, far away.

Hawks from Every Angle takes hawk identification to new heights. It offers a fresh approach that literally looks at the birds from every angle, compares and contrasts deceptively similar species, and provides the pictures (and words) needed for identification in the field. Jerry Liguori pinpoints innovative, field-tested identification traits for each species from the various angles that they are seen.

Featuring 339 striking color photos on 68 color plates and 32 black & white photos, Hawks from Every Angle is unique in presenting a host of meticulously crafted pictures for each of the 19 species it covers in detail—the species most common to migration sites throughout the United States and Canada. All aspects of raptor identification are discussed, including plumage, shape, and flight style traits.

For all birders who follow hawk migration and have found themselves wondering if the raptor in the sky matches the one in the guide, Hawks from Every Angle—distilling an expert’s years of experience for the first time into a comprehensive array of truly useful photos and other pointers for each species—is quite simply a must.

Bird Fact Friday – Where do hawks migrate?

From page 7 of Hawks from Every Angle:

Hawks migrate twice a year as they travel to and from their breeding grounds. They tend to congregate in mountainous and coastal areas. Peninsula sites in particular, such as Cape May Point in New Jersey, are great places to witness raptor migration. There are more than 1,000 known hawk migration sites throughout North America, and new ones are discovered each year as raptor watching increases in popularity. The Hawk Migration Association of North America publishes spring and fall journals that are necessary for anyone interested in witnessing hawks in their natural habitat.

Hawks from Every Angle: How to Identify Raptors In Flight
Jerry Liguori

hawksIdentifying hawks in flight is a tricky business. Across North America, tens of thousands of people gather every spring and fall at more than one thousand known hawk migration sites—from New Jersey’s Cape May to California’s Golden Gate. Yet, as many discover, a standard field guide, with its emphasis on plumage, is often of little help in identifying those raptors soaring, gliding, or flapping far, far away.

Hawks from Every Angle takes hawk identification to new heights. It offers a fresh approach that literally looks at the birds from every angle, compares and contrasts deceptively similar species, and provides the pictures (and words) needed for identification in the field. Jerry Liguori pinpoints innovative, field-tested identification traits for each species from the various angles that they are seen.

Featuring 339 striking color photos on 68 color plates and 32 black & white photos, Hawks from Every Angle is unique in presenting a host of meticulously crafted pictures for each of the 19 species it covers in detail—the species most common to migration sites throughout the United States and Canada. All aspects of raptor identification are discussed, including plumage, shape, and flight style traits.

For all birders who follow hawk migration and have found themselves wondering if the raptor in the sky matches the one in the guide, Hawks from Every Angle—distilling an expert’s years of experience for the first time into a comprehensive array of truly useful photos and other pointers for each species—is quite simply a must.

Digital copies of our top-selling bird books now available on iBooks

Click here to learn how to win copies of all 6 books

Giveaway ends February 7, 2014.

One of the questions we field most often is, “Why can’t I buy an electronic version of this bird book?” So we are delighted to announce that starting this month, several of our most popular birding and natural history titles are now available as ebooks through the iBooks store.

The books are affordable and look simply amazing in digital form — zoom in on Katrina Van Grouw’s intricate drawings of skeletons in The Unfeathered Bird, explore The Crossley ID Guide‘s layered plates in greater detail, or simply revel in the majestic photos and artwork in The World’s Rarest Birds.

To view sample pages and explore these titles further, please use these links:

Birds of Peru
This is easily one of our all-time best-selling field guides and this ebook features all of the same great information and illustrations as the print edition, but makes it more portable and easier to search.
The Crossley ID Guide: Eastern Birds
This has always been a book screaming for a digital edition. To say the plates in this book look incredible on a tablet would be a massive understatement– they are absolutely jaw-dropping beautiful.
The Warbler Guide
The complete text, photos, and sonograms at your fingertips in time for spring migration. Keep the print copy at home for reference and take this digital book into the field.
The Unfeathered Bird
Zooming in on the drawings reveals new details about structure, function, and evolution.
Hawks at a Distance
Even more useful now that you can zoom in and examine the profile and silhouette of the birds.
The World’s Rarest Birds
Not only do the photos and illustrations look incredible, but built-in search functions mean it is easier to find the information you want.