Sunday, September 14, 2014

Our State bird often pretends to be something else.

Northern Mockingbird

A few species of birds are the only living creatures, other than humans, that can imitate sounds that they weren’t born to produce. This ability to learn and imitate strange sounds is called verbal mimicry, and the few species of birds that can do it are called mimics. The most common mimic in north Texas is our State bird…the Mockingbird. I've heard stories of Mockingbirds mimicking a squeaky screen door, a ringing cell phone and computer dings.

Wide open, disease-free spaces Birds like plenty of space for feeding, and it prevents disease. While images of dozens of birds crowded onto a single feeder are attractive, the likelihood of contact between sick and healthy birds grows. Also, jockeying for space may increase a bird's stress level, making it more susceptible to disease.

To prevent overcrowding, use feeders that minimize contact between birds and provide additional places to feed. That could mean having several feeders, planting large clusters of native plants, or both. The most important task, however, is to keep the feeding sites clean.

OWEN YOST, in addition to being a blogger, is a licensed Landscape Architect emeritus who has lived and worked in north Texas for over 30 years. He is the recipient of a Lifetime Achievement Award of the Native Plant Society of Texas, and is a member of the American Society of Landscape Architects (ASLA), International Federation of Landscape Architects, National Wildlife Federation and the Audubon Society. His office is at Yost87@charter.net in Denton.

Wednesday, September 10, 2014

Many birds going extinct !!!!!!

Eastern Meadowlark

More than half of birds in North America are currently losing critical habitat and food sources as the planet warms, said a report by the National Audubon Society.

The Bald Eagle and Brown Pelican, are among hundreds of species facing threats to their survival due to climate change, researchers said Tuesday.

Another recent report called the "State of the Birds 2014, USA," issued by the 23-member US Committee of the North American Bird Conservation Initiative, described losses of as much as 46 percent of birds in deserts and drylands such as Utah, Arizona and New Mexico since the 1960s.

Common backyard birds are becoming less common. If you see an n Orchard Oriole, for instance, take a good look because you may not see another for long time, if ever. Those birds that breed and eat in the coastal wetlands, and prairies, are struggling most o0d all. Birds like the eastern meadowlark and the bobolink have declined by some 40 percent since 1968, but losses have leveled off since 1990 with the help of "significant investments in grassland bird conservation," said the State of the Birds report.

The Audubon report found that the Bald Eagle's summer range could shrink by nearly 75 percent in the next 65 years, while warming temperatures might make nesting and breeding difficult for birds like the Common Loon and the Baltimore oriole.

"Official state birds at risk include Brown Pelican (Louisiana), California Gull (Utah), Hermit Thrush (Vermont), Mountain Bluebird (Idaho and Nevada), Ruffed Grouse (Pennsylvania), Purple Finch (New Hampshire) and Wood Thrush (Washington, DC)," said the findings.

"We all will see the effects of changing climate in our own backyards. We just cannot ignore such a sobering wake-up call," said Terry Root, a Nobel Prize-winning Stanford University professor and Audubon board member. Bird conservation and sensitive land development can go hand-in-hand.

The reports' release coincided with the 100th anniversary of the extinction of the passenger pigeons, which were once among the most abundant creatures on Earth. The last known passenger pigeon, Martha, died at the Cincinnati Zoo in 1914. "When we think about Martha and what happened to her kind in the span of about five decades, think about what will happen in the three or four decades between now and the middle of the century as we add another two-plus billion people to the planet," Ashe said.

"We can never forget that we can see something go away forever," said Pete Marra, head of the Smithsonian Migratory Bird Center, recalling other species that have disappeared since, including the Carolina Parakeet, the Eskimo Curlew, Bachman's Warbler and the Po'ouli of Hawaii. Marra said the biggest causes of bird declines are habitat loss, urban sprawl, lack of food sources and pollution.

Dangers to birds will only increase as the global population swells from its current seven billion in the coming decades, said US Fish and Wildlife director Dan Ashe.

Science may be able to create birds that may be similar, but are merely distant cousins of the real species that was lost to extinction. He called for people to recommit themselves to conservation and environmental awareness in order to prevent further extinctions.

Sunday, September 7, 2014

Most of north Texas' Woodpeckers don't migrate.

Downy Woodpecker

Yellow-bellied Sapsucker

Some migrate – but most of them are here all year. Evasive answer, I know. Of the 22 Woodpecker species north of Mexico, only 15 migrate long distances. Non-migrators include the most frequently-seen here; the Downy and Hairy Woodpeckers. The Red-bellied Woodpecker doesn’t migrate either. On the other hand, our local species of Yellow-bellied Sapsucker (a member of the Woodpecker group) spends summers up north and winters here. So it's called a "Migrator”.

How a woodpecker eats suet If you looked closely, you’d see that a woodpecker has many tiny barbs on the end of his (or her) long, narrow tongue. So the tongue has sort of a bottle-brush shape. The barbs catch on the suet and break off tiny pieces. The “regular” tongue brings these pieces into the woodpecker’s mouth. Although many birds peck at suet, only the woodpeckers (in north Texas, Downy WPs, Hairy WPs and Red-bellied WPs are common) are adapted like this.

Wednesday, September 3, 2014

Now is a critical time for Hummingbirds in north Texas

Buff-bellied

Now, here in north Texas, we are entering a crucial time period for Hummingbirds. Soon they’ll start their twice-a-year migration. Most will fly non-stop over the Gulf of Mexico; some will fly south along the coasts of Texas, Mexico and Central America. If they survive the flight, they’ll end up in their wintering grounds of Central America. and far northern South America.

Many will die, sadly. Which is where you, the individual homeowner, come in. Big government (whether it be city, county, state nor federal) can’t do it. Nor will they. It's up to you, and maybe your neighbor.

Hummingbirds that have lived here all summer join with those from other parts of the continent as they migrate. You may see species you’ve never seen before – “porking up” at your nectar feeders. They’re using the Central Flyway, which comes right through north Texas.

They’ll come through at all hours, too. Some may even stop for a day or two to rest up if the nectar you have is particularly good, and there are safe resting places nearby. (Due to calmer winds and the lack of predators, much of migration flight is done at night).

So expect your nectar feeders to be busy in September. Also, do your part by keeping nectar feeders filled with of clear, fresh nectar for some Hummers you may not have seen before.

Broad-billed

Costa's

Sunday, August 31, 2014

starlings came to America, unwillingly, from far, far away

European Starling

Like Kudzu vine, 'flying' Carp, fire ants, Burmese Pythons and Dutch Elm disease, starlings (technically European Starlings) didn’t occur naturally on this continent (like 99% of our birds).

An eccentric Shakespeare enthusiast released about 100 starlings in New York in the 1890s. He thought it a clever idea to bring to the “New World” every species mentioned in Shakespeare’s writings. Now we have over 200 million of them. Alas!

Before you swat it… America’s native pollinators cheerfully pollinate a whole lot of crops; our native bees alone do $3 billion worth of crop pollination that would otherwise have to be done by hired honeybees (which are mainly European in origin). As of yet, nobody has received a bill for all the pollination by home-grown pollinators.

Of course all honeybees (whatever their country of origin) are suffering greatly from the man-made eradication that's called "colony collapse syndrome".

Wednesday, August 27, 2014

A world minus half as many birds as there are now

. "Queen of the Sun" is a documentary film about the importance of bees, how we are killing them, what a world without bees would be like, and what we can do as individuals. Here's the "trailer".

For one thing, there'd be a lot fewer birds around. Because there'd be a lot less natural bird food around. Because there'd be a lot fewer pollinators around.

JUST BECAUSE YOUR BIRDFEEDER IS EMPTY, IT DOESN’T MEAN YOU HAVE TO FILL IT RIGHT AWAY

Sunday, August 24, 2014

Why don't birds fall off the branch they fall asleep on?

Eastern Kingbird

When birds sleep, they usually perch on a branch and stay all night. But why don’t they fall off when they doze off? Because a ratchet-type arrangement of the leg bones, muscles, tendons and feet tightens - the opposite of the relaxation that happens with humans. When they awaken, birds can adjust this, but when asleep the feet clench tightly, like they’re glued to the branch

Clogged feeders? Whenever your feeders are outside, experiencing 3 or more straight days of continuous rain and/or high humidity, the seed can clump together and clog. Since birds feed heavily during breaks in the rain, I leave my feeders outside. But when the rain ends, and preferably overnight, I’ll bring them in, temporarily empty the seed into a large pan, break up any clumps, and let it air-dry.