Bird Fact Friday – Is the Mute Swan silent?

From page 284 of Waterfowl of North America, Europe & Asia:

The Mute Swan is not mute at all. Its most frequent call is a wee-rrrr or wiingrr-iew with a high-pitched second syllable. It will also make an in-rrr sound accompanied with strong hissing in aggression. In flight, the wings produce a whistling sound, typical of the species.

Waterfowl of North America, Europe, and Asia: An Identification Guide 
Sébastien Reeber

ReeberThis is the ultimate guide for anyone who wants to identify the ducks, geese, and swans of North America, Europe, and Asia. With 72 stunning color plates (that include more than 920 drawings), over 650 superb photos, and in-depth descriptions, this book brings together the most current information on 84 species of Eurasian and North American waterfowl, and on more than 100 hybrids. The guide delves into taxonomy, identification features, determination of age and sex, geographic variations, measurements, voice, molt, and hybridization. In addition, the status of each species is treated with up-to-date details on distribution, population size, habitats, and life cycle. Color plates and photos are accompanied by informative captions and 85 distribution maps are also provided. Taken together, this is an unrivaled, must-have reference for any birder with an interest in the world’s waterfowl.

50 lucky birders will win a North American Warbler Fold-Out Guide

Warblers

In honor of the start of warbler migration season, we’re giving away the laminated, portable North American Warbler Fold-Out Guide to the first 50 entrants to our giveaway hosted by Rafflecopter. The foldout includes identification data for warblers in North America with accompanying QR codes that provide 3D models and songs.

To enter, please follow the instructions in the box below. Good luck!

Warblers

 

*UPDATE*

As of 3:21PM EST, we have reached 50 entrants. Thank you to everyone who participated! If you missed your chance, check back next week for another giveaway.

Kicking Off Warbler Migration Season

Welcome back to the warblers! As winter 2016 struggles to come to an end, warblers are being spotted across the country. From now until mid-May, take the opportunity to watch these birds travel back from as far as South America. PUP has a variety of resources for warbler identification. If you want to go in search of these musical little birds, grab your binoculars and we’ll supply the guides!

WarblerThe Warbler Guide is an essential resource for the serious warbler enthusiast. The wealth of information alongside beautiful photographs makes identification easy.

If you don’t want to bring a heavy book with you into the field, fear not—we have lots of portable options! You can download the Warbler Guide App for iOS to get all the benefits of the book in the palm of your hand, plus many more, or you can download our free pdfs. The Quickfinders sort warblers in a variety of ways to suit your needs, and The North American Warblers fold out has QR codes to deliver the most information in a convenient package.

As the warblers come flying back, use these guides to find and identify them in their natural habitat and be sure to tweet your photos to @PrincetonNature.

Warbler

Bird Fact Friday – When do birds of the same species vary in color?

From page 361 of The Birdwatcher’s Companion to North American Birdlife:

According to Gloger’s Rule, representatives of bird or mammal species that breed in warmer, more humid climates tend to be darker in color than those breeding in cooler, drier climates. For example, the pale plumage of the desert-dwelling races of the Horned Lark contrasts strikingly with that of races from the humid Northwest. The implications of Gloger’s Rule are not yet understood.

The Birdwatcher’s Companion to North American Birdlife
Christopher W. Leahy
Illustrations by Gordon Morrison

birdsThe quintessential A-Z guide, this is a book that anyone interested in birds will want to have close at hand. First published more than twenty years ago, this highly respected reference volume has been fully revised and updated. It captures the fundamental details as well as the immense fascination of North American bird life in a style that is authoritative, yet fresh, witty, and eminently readable.

Both a practical handbook for amateurs and a handy reference for seasoned birders, it provides accounts of the basic elements of birdlife, as well as a wealth of easy-to-access information on such subjects as bird physiology and anatomy, terms and jargon, name definitions and etymology, and ornithological groupings.

Readers will discover everything from the color of a dipper’s eggs (glossy, white, and unmarked) to the number of species of woodpeckers in the world (216). They will also find more than one hundred of the best-known and most colorful colloquial names for birds, alphabetized and briefly defined. Collective nouns relating to birdlife—for example, “an exaltation of larks”—are included in the “Nouns of Assemblage” section. Biographical sketches of persons responsible for describing or naming a significant number of North American species are also included, as well as handsome and accurate illustrations by Gordon Morrison. And for those who want to go beyond reading about their favorite birds and take to the great outdoors, the book offers still more useful information: descriptive entries on a selection of the best-known birdwatching spots of North America.

Bird Fact Friday – Flightless Ducks

From page 32 of The Crossley ID Guide: Britain and Ireland:

During the summer, male ducks moult such that they lose all their flight feathers for several weeks and look remarkably similar to the females of their breed. It usually occurs on breeding grounds that are chosen for their plentiful food supplies and water that is deep enough to allow diving. These two factors, combined with duller plumage that makes it easier to camouflage, protect the flightless birds from predators. When they are in this state they are called eclipse males.

The Crossley ID Guide: Britain and Ireland
Richard Crossley & Dominic Couzens

CrossleyThis guide is a celebration of the beauty of birds and the British and Irish countryside. Aimed at beginner and intermediate birders, yet suitable for all levels, this new volume in the groundbreaking Crossley ID Guide series is the most user-friendly guide to the birds of Britain and Ireland. Following The Crossley ID Guides’ award-winning design, this book looks at all regularly occurring species in Britain and Ireland, and shows readers how to identify birds in their natural habitats using size, structure, shape, probability, and behavior—just like the experts do! Stunning images are accompanied by the colorful and compelling text of Dominic Couzens, one of Britain’s leading nature writers.

This unique book treats more than 300 species—all the regularly occurring birds likely to be encountered by observers—and the guide’s attractive pages provide a real-life approach to bird identification. Beautiful, in-focus scenes present birds in various plumages and in lifelike poses set in identifiable British and Irish habitats. The plates also illustrate how a bird’s appearance changes with distance. Organizing images in cohesive, easy-to-understand plates rather than as separate photographs, this book also sets itself apart by containing more images that demonstrate flight, behavior, habitat, and plumages than any other volume available. Not only is this field guide a reference book, it is also a spectacular teaching resource that makes it easy for nature enthusiasts to see and appreciate the big picture of bird identification.

Bird Fact Friday – Why do birds hybridize?

From page 26-27 of Waterfowl of North America, Europe & Asia:

Birds mate with other birds of different species in the wild for several reasons. Usually there is genetic closeness, since if the parent genomes’ are too distant offspring will be sterile or unviable. Birds with different courtship rituals, breeding times, or habitats usually won’t mate, unless geographic restrictions are lifted (such as in captivity) when it becomes more common. Sometimes hybridization occurs because of interspecific parasitism, which leads some species of ducks to lay a portion of their eggs in the nests of other species. This can produce an imprinting phenomenon in the female of the host species, affecting the choice of sexual partners later in life. Other causes of hybridization are described in Waterfowl of North America, Europe & Asia.

Waterfowl of North America, Europe, and Asia
An Identification Guide
Sébastien Reeber

ReeberThis is the ultimate guide for anyone who wants to identify the ducks, geese, and swans of North America, Europe, and Asia. With 72 stunning color plates (that include more than 920 drawings), over 650 superb photos, and in-depth descriptions, this book brings together the most current information on 84 species of Eurasian and North American waterfowl, and on more than 100 hybrids. The guide delves into taxonomy, identification features, determination of age and sex, geographic variations, measurements, voice, molt, and hybridization. In addition, the status of each species is treated with up-to-date details on distribution, population size, habitats, and life cycle. Color plates and photos are accompanied by informative captions and 85 distribution maps are also provided. Taken together, this is an unrivaled, must-have reference for any birder with an interest in the world’s waterfowl.

Bird Fact Friday – Birds of the Galápagos

From page 21 of Wildlife of the Galápagos:

Darwin’s finches have become a distinguishing characteristic of the Galápagos Islands, and it’s no wonder! There are only about 60 resident species of birds on the Galápagos Islands, and 13 of them are finches. This makes identification a fun challenge for the amateur birder.

Wildlife of the Galápagos
Second Edition
Julian Fitter, Daniel Fitter, and David Hosking
Introduction

GalapagosSince its first publication more than a decade ago, Wildlife of the Galápagos has become the definitive, classic field guide to the natural splendors of this amazing part of the world. Now fully updated, this essential and comprehensive guide has been expanded to include the more than 400 commonly seen birds, mammals, reptiles, invertebrates, and plants, and other coastal and marine life of this wondrous archipelago. Over 650 stunning color photographs, maps, and drawings are accompanied by accessible, descriptive text. This new edition includes information about all the common fish of the region and Spanish names are featured for the first time. There is also a revised section that discusses the islands’ history, climate, geology, and conservation, with the most current details on visitor sites.

This is the perfect portable companion for all nature enthusiasts interested in the astounding Galápagos.

• Covers 400+ commonly seen species, including birds, mammals, reptiles, invertebrates, and plants, and other coastal and marine life
• Illustrated with over 650 color photographs, maps, and drawings
• Includes maps of visitor sites
• Written by wildlife experts with extensive knowledge of the area
• Includes information on the history, climate, geology, and conservation of the islands

Bird Fact Friday – City Birds

From page 132 of The Crossley ID Guide: Raptors:

The Taiga Merlin, the most common type of Merlin, generally makes its home in the boreal forest out of earshot of the Bald Eagle. Recently, like a number of other raptors, it has begun adapting to humans and making its home in urban areas.

The Crossley ID Guide: Raptors
Richard Crossley, Jerry Liguori, Brian Sullivan
Introduction

RaptorsPart of the revolutionary Crossley ID Guide series, this is the first raptor guide with lifelike scenes composed from multiple photographs—scenes that allow you to identify raptors just as the experts do. Experienced birders use the most easily observed and consistent characteristics—size, shape, behavior, probability, and general color patterns. The book’s 101 scenes—including thirty-five double-page layouts—provide a complete picture of how these features are all related. Even the effects of lighting and other real-world conditions are illustrated and explained. Detailed and succinct accounts from two of North America’s foremost raptor experts, Jerry Liguori and Brian Sullivan, stress the key identification features. This complete picture allows everyone from beginner to expert to understand and enjoy what he or she sees in the field. The mystique of bird identification is eliminated, allowing even novice birders to identify raptors quickly and simply.

Comprehensive and authoritative, the book covers all thirty-four of North America’s diurnal raptor species (all species except owls). Each species is featured in stunning color plates that show males and females, in a full spectrum of ages and color variants, depicted near and far, in flight and at rest, and from multiple angles, all caught in their typical habitats. There are also comparative, multispecies scenes and mystery photographs that allow readers to test their identification skills, along with answers and full explanations in the back of the book. In addition, the book features an introduction, and thirty-four color maps accompany the plates.

Whether you are a novice or an expert, this one-of-a-kind guide will show you an entirely new way to look at these spectacular birds.

Bird Fact Friday – The migratory habits of the Peregrine Falcon

From page 85 of Hawks from Every Angle:

Peregrine Falcons often travel great distances on migration. Their name originates from the word peregrinate, which means “to wander.” Individual peregrines have been tracked from Alaska to South America and across the Atlantic from the Florida Keys.

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

LiguoriIdentifying 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 – Bergmann’s Rule

From page 51 of The Birdwatcher’s Companion to North American Birdlife:

A nineteenth-century German zoologist observed that overall body size tends to be greater in representatives of bird and mammal species living permanently in cooler climates than in those living in warmer climates because large bodies retain heat more effectively than smaller ones.

The Birdwatcher’s Companion to North American Birdlife
Christopher W. Leahy

LeahyThe quintessential A-Z guide, this is a book that anyone interested in birds will want to have close at hand. First published more than twenty years ago, this highly respected reference volume has been fully revised and updated. It captures the fundamental details as well as the immense fascination of North American bird life in a style that is authoritative, yet fresh, witty, and eminently readable.

Both a practical handbook for amateurs and a handy reference for seasoned birders, it provides accounts of the basic elements of birdlife, as well as a wealth of easy-to-access information on such subjects as bird physiology and anatomy, terms and jargon, name definitions and etymology, and ornithological groupings.

Readers will discover everything from the color of a dipper’s eggs (glossy, white, and unmarked) to the number of species of woodpeckers in the world (216). They will also find more than one hundred of the best-known and most colorful colloquial names for birds, alphabetized and briefly defined. Collective nouns relating to birdlife–for example, “an exaltation of larks”–are included in the “Nouns of Assemblage” section. Biographical sketches of persons responsible for describing or naming a significant number of North American species are also included, as well as handsome and accurate illustrations by Gordon Morrison. And for those who want to go beyond reading about their favorite birds and take to the great outdoors, the book offers still more useful information: descriptive entries on a selection of the best-known birdwatching spots of North America.

Bird Fact Friday – Birds protected by religious tradition in India

From page 20 of Birds of India:

The enlightened and benevolent attitudes of Hinduism and Buddhism towards wildlife have helped to conserve the rich natural heritage of the Indian subcontinent. India has a tradition of protection of all forms of animals dating back at least 3,000 years when the Rig Veda mentioned the right of animals to live. Sacred groves, village tanks, and temples where the hunting and killing of all forms of life is prohibited can be found throughout India.

Birds of India: Pakistan, Nepal, Bangladesh, Bhutan, Sri Lanka, and the Maldives
Second edition
Richard Grimmett, Carol Inskipp & Tim Inskipp

IndiaThe best field guide to the birds of the Indian subcontinent is now even better. Thoroughly revised, with 73 new plates and many others updated or repainted, the second edition of Birds of India now features all maps and text opposite the plates for quicker and easier reference. Newly identified species have been added, the text has been extensively revised, and all the maps are new. Comprehensive and definitive, this is the indispensable guide for anyone birding in this part of the world.

Bird Fact Friday – Where do penguins live?

From page 16 of Penguins:

A popular misconception is that all penguins live around the poles. Penguins are actually constrained to the southern hemisphere, but only four species of 18 (or 19, depending on the taxonomy used) form colonies along parts of the Antarctic coastline, remaining at least 1200 km (745 miles) from the South Pole. The entire ‘crested dynasty’ (seven species), live in slightly milder climates, mostly north of the Polar Front, nesting on subantarctic islands. Still others make their homes in Australia, New Zealand, and the Galapagos Islands. Many penguins live in areas so remote that they are rarely observed or photographed.

Penguins: The Ultimate Guide
Tui De Roy, Mark Jones & Julie Cornthwaite

PenguinsPenguins are perhaps the most beloved birds. On land, their behavior appears so humorous and expressive that we can be excused for attributing to them moods and foibles similar to our own. Few realize how complex and mysterious their private lives truly are, as most of their existence takes place far from our prying eyes, hidden beneath the ocean waves. This stunningly illustrated book provides a unique look at these extraordinary creatures and the cutting-edge science that is helping us to better understand them. Featuring more than 400 breathtaking photos, this is the ultimate guide to all 18 species of penguins, including those with retiring personalities or nocturnal habits that tend to be overlooked and rarely photographed.

A book that no bird enthusiast or armchair naturalist should do without, Penguins includes discussions of penguin conservation, informative species profiles, fascinating penguin facts, and tips on where to see penguins in the wild.

• Covers all 18 species of the world’s penguins
• Features more than 400 photos
• Explores the latest science on penguins and their conservation
• Includes informative species profiles and fascinating penguin facts