Category Archives: penguins

Birds make use of various strategies to attract and keep mates

Shauna Fletche/Pixabay • Some birds, like waxwings, like to present tasty treats to their potential mates.

 

With Valentine’s Day around the corner, it’s an opportune time to see how courtship is handled among our fine feathered friends. Most birds don’t bring a box of chocolates or a bouquet of roses when they take up courtship of a prospective mate, but birds have several equivalent behaviors that they employ to attract the attentions of the opposite sex. In honor of Valentine’s Day I thought a look at some of the more unusual courtship rituals of some of our feathered friends would be appropriate.

Aerial acrobatics designed to impress

In late winter and early spring, a true oddball begins courting. The American woodcock, also known by such whimsical names as “bog sucker” and “timberdoodle,” is a shorebird that has completely abandoned the shore in favor of woodlands and fields. Beginning as early as February, American woodcocks in the region conduct nightly courtship displays, starting at dusk, that combine aerial acrobatics with an assortment of unusual acoustical flourishes. Any wet field adjacent to a wooded area could offer a stage for these evening displays, but unless you know where to look and make an effort to do so, the American woodcock might as well remain a phantom of the night.

These mating rituals provide almost the only time of the year during which this bird makes itself available for observation. It’s only during this brief window that opens into their lives that we can be assured a glimpse. Even then, our peeks at woodcocks often consist of a fuzzy twilight escapade as the bird flings itself heavenward only to make a spiraling descent a few seconds later. The displays begin with a distinct vocalization, a type of “pent,” that also has the quality of sounding like some sort of mechanical buzzer.

Once the displays conclude for the season, the birds assume nesting duties, usually unobserved by humans. The rest of the year, almost nothing but blind, sheer luck would allow a birder to stumble across an American woodcock. It’s almost as if they disappear after these spring flights of fancy.

Birds bearing gifts

Many birds present small trinkets to a prospective mate. For instance, many male penguins make a present of a stone or pebble to female penguins. There could be more than a simple bribe behind this gift. Female penguins don’t build elaborate nests. In fact, a scrape on the bare ground, perhaps encircled by a collection of pebbles, marks the extent of their nest construction. So, the perfect pebble could be the way to winning a female penguin’s heart.

The way to the heart is through the stomach

Observant birders may have witnessed a male Northern cardinal slip a female a morsel of food, such as a peanut or a shelled sunflower kernel. It’s a marked change for this bird. During the winter months, a male cardinal is more likely to chase a female away from a feeder rather than share food with her. However, as spring approaches, his behavior undergoes a change and he becomes content to feed next to a female cardinal, often slipping her some choice tidbits.

Sabine van Erp/Pixabay • Bow to your partner: Grey-crowned cranes perform an elaborate dance designed to strengthen their bond.

May I have this dance?

Many species of birds perform elaborate and ritualistic dance displays. Among birds known for tripping the light fantastic are flamingoes, cranes, grouse and grebes. Cranes are one of the oldest families of birds on earth. They’re also some of the most accomplished dancers in the animal kingdom. Pairs perform very ritualistic dances that, if the performers were human, would no doubt require the services of an accomplished choreographer. Cranes mate for life and the ritual of dancing is a way to strengthen the bonds between a mated pair. The ability to dance is, apparently, not instinctive. Young cranes must practice their dance moves, a process that can take years before they master the elaborate dance.

Dave Menke/U.S. Fish & Wildlife Service • A pair of Clark’s Grebes displays in a courtship ritual known as “rushing” or “weed dance.” Birds use a variety of strategies to attract and keep mates.

Synchronized swimming

While many birds dance to impress a mate or strengthen pair bonds, grebes perform a dance that takes place completely on the surface of the water. A pair will engage in this intricate performance, perfectly mirroring the moves of the other as they literally race across the surface of the water. These dances by grebes are also known as “rushing” or “weed dance.” It’s called as a weed dance because at the culmination of the ritual, the birds usually hold some type of aquatic plants in their bills while racing swiftly over the surface of the water. Pairs that perform well together stay together, building a nest and raising young.

Good housekeeping seal of approval

The tropical family of bowerbirds are famous for complex nests built by males and then decorated with bright and colorful objects to catch the eye of a potential mate. The nests of these birds are actually referred to as a “bower.” Usually constructed on the ground, the male will line the approachs to the bower with items such as shells, leaves, flowers, feathers, stones, berries, and even discarded garbage, including plastic scraps or bits of glass. Unusually odd items pressed into these decorative displays have included coins and spent rifle shells. This habit of male bowerbirds must rank as the ultimate in trying to impress a mate with shiny bling.

These are just a few of the inventive ways that birds go about attracting and keeping mates. Perhaps you can pick up some pointers from our feathered friends to ensure you have a great Valentine’s Day this year.

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If you have a question, wish to make a comment or share a sighting, email me at ahoodedwarbler@aol.com.

Cardinal has rivals when it comes to depiction on Christmas cards

Although many articles have been penned about the demise of the Christmas card, I still receive plenty of these paper greetings each holiday season. My friends and acquaintances, knowing me well, I suppose, often select cards featuring a variety of birds. Regardless of rising postal costs and hectic schedules during a busy season, the Christmas card appears to be an enduring tradition.

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Photo by Nathan Rathbun/USFWS • An observation of a bright red male Northern cardinal is sure to put some cheer into the holidays.

Many of the cards I have received this year and in past holiday seasons have featured the Northern cardinal, which has long been one of my favorite birds. During the winter months, particularly during the holiday season, the Northern cardinal seems to take on even more significance. Anyone who received many Christmas cards this year will probably confirm that the cardinal often appears on them. The origins of the cardinal’s affiliation with the holiday of Christmas are a bit murky. After all, the Northern cardinal is a North American bird that would have been unknown in Europe until the 1600s, when the first explorers and settlers arrived from Europe.

Chinstrap5-HR

Photo by Jeff Keller/National Science Foundation • Chinstrap penguins (Pygoscelis antarctica) are also known as the bearded penguin and the ringed penguin. They reach about two feet tall and weigh less than 10 pounds. Chinstraps form strong bonds with their mates and will wait long periods for their mates to return to the breeding ground each year, rather than take a new mate.

The cardinal is hardly the only species of wildlife, let alone bird, that has become closely associated with the holiday. Everything from polar bears and seals to doves and penguins are also popular motifs for designers who craft Christmas cards. In recent years, I’ve even seen other birds — owls, chickadees, and even sandpipers — begin to decorate cards.

Often, when we think of the birds of the winter season, our thoughts focus on some of the less-than-colorful feeder visitors — the brown sparrows and wrens, the black and white chickadees and the drab American goldfinches that are such a contrast in winter to their vibrant summer appearance. The Northern Cardinal, especially the brilliant red male, stands out against a winter backdrop of snow white, deep green or drab gray. Could there be a better bird to brighten a Christmas card?

Well, as it turns out, there are other birds beyond the picture-perfect Northern cardinal that are worthy of gracing the front of Christmas cards. As previously mentioned, penguins are popular featured birds on many a Christmas card. Thanks to major motion pictures like Happy Feet (2006) and Mr. Popper’s Penguins (2011), as well as documentaries like 2005’s March of the Penguins, these dapper birds have enjoyed an enhanced profile in recent years and earned a place on our Christmas cards.

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Photo by Kelly Falkner/National Science Foundation • Two emperor penguins greet each other near Ross Island in Antarctica. Emperors are the largest of all penguins, reaching nearly four feet tall.

Of course, there’s not one single “penguin” species. There are about 20 different penguin species, ranging in size from the emperor penguin, which weighs 75 pounds and stands three feet seven inches tall, to the little blue penguin, also whimsically known as the fairy penguin, which weighs 2.2 pounds and stands about 16 inches tall. Other species include the king penguin, yellow-eyed penguin and macaroni penguin.

While at first glance owls are an unlikely species for depiction on a Christmas card, I can understand why people have embraced these nocturnal birds. With their big eyes and a reputation that has improved as we are less likely to embrace superstitious myths, owls are a good choice for gracing the cover of a card. One species — the snowy owl — is a perfect bird to depict the wintry season. With its white plumage, contrasted with varying amounts of black or brown markings on the body and wings, this owl of the Far North is a good symbol for the Christmas season. It’s no surprise at all to find an image of a snowy owl staring with piercing yellow eyes from the front of a Christmas card. Other species of owls that I’ve seen featured on cards include barn owl, great horned owl, Northern saw-whet owl, and burrowing owl.

In real life, the snowy owl is a denizen of the treeless tundra regions of the Arctic. Some winters see these owls staging massive migrations that bring them south of the Canadian border. While they are more likely to spend the winter months in such Canada-bordering states as Minnesota, Michigan and Wisconsin, snowy owls have surprised and delighted birders by winging their way as far south as Tennessee, Virginia and North Carolina during some winters.

Snowy-OWL

Photo by Tom Koerner/USFWS • This snowy owl was photographed at Sand Lake National Wildlife Refuge in South Dakota. Some winters see great numbers of this owl surge out of the tundra to winter south of the Canadian border.

While owls and penguins are definite contenders, I’d wager that the Northern cardinal is the bird most often depicted on Christmas and other greeting cards. As further evidence to explain the popularity of the Northern cardinal, consider that it’s the official state bird of seven states — Virginia, North Carolina, West Virginia, Ohio, Illinois, Indiana, and Kentucky. Only the Northern mockingbird, which represents five states as official state bird, even comes close to the Northern Cardinal in this respect. Being designated an official state bird is also an honor that’s eluded any species of owl, let alone any of the world’s various penguins.

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Snowy owl pair painted by John James Audubon.

Finally, one last thing works in favor of the Northern cardinal. Once the holidays are past, and the Christmas cards are packed away, there’s nothing like a glimpse of a Northern Cardinal to add some cheer to a bleak winter day.

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Bryan Stevens lives near Roan Mountain, Tennessee. To learn more about birds and other topics from the natural world, friend Stevens on Facebook at https://www.facebook.com/ahoodedwarbler. If you have a question, wish to make a comment or share a sighting, email ahoodedwarbler@aol.com.

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Photo by Mike Lucibella/National Science Foundation • An adult Adelie penguin turns its head. The Cape Crozier penguin colony is one of the largest known Adelie penguin colonies in the world, home to roughly half a million birds.