September 12th, 2014

Attracting Birds With Snags

Snags are dead or dying trees that are still standing and holding fast, sometimes at the bottom of a body of water. Snags that are protruding out of the water or have fallen onto dry ground can provide wildlife with a vibrant setting for shelter, food, hibernation and storage. Snags can result from disease, lightning, fire, insect infestations, too much shade, drought, root competition as well as old age. Snags are very important for wildlife in both natural and landscaped environments and can enhance your area by attracting birds and other wildlife species that may not otherwise be found there.

List of Uses

Flying and land-dwelling wildlife alike use snags for many purposes - nest, rest, preen, feed, store food, hibernate, perch, drum (to signal ownership of territory), and roost. Many classes of animals nest in the cavities of dead or dying trees, and many bird species in North America use tree cavities for cover and feeding. Many of these species will not nest anywhere else, and so without snags, they might become extinct. They provide shelter from wind, rain, and snow, and the temperature inside cavities in large trees stays more constant than the surrounding air, giving added protection. For many species, that's also where their food is, so it's convenient for dining.

While living trees offer superior camouflage and safety for birds when the trees are in full foliage, dead trees, without the leaves, provide both a great staging area for birds and a great view for birdwatchers and photographers.

Any bird flying from one point to another may choose a snag as a pit stop to briefly rest their wings. Dead and bare branches that are exposed to open air makes it easier for birds to pick a choice spot for a safe landing. Landing on a branch without having to navigate heavy leaves and branches makes a snag more appealing to stop for a quick rest before they take off again.

Many predators, such as hawks, eagles, ospreys, red-tail hawks, herons, and egretsalso use snags to scope out their meals. At the same time, they can use it as a look-out point to keep an eye on members of their own species who invade their territory. Often, they simply use snags because of the bare branches of snags to perch or roost on. Perhaps this is because the bare trees are the best place to keep an eye on potential invaders or just because it's hard for large birds to maneuver wings through foliage. Snags are so versatile as far as usage that almost every species of bird will find a reason to use a snag. See a list of birds that are attracted to snags »

The Original Cavity Creators - Woodpeckers

Woodpeckers use large dead tree trunks as a way to make their presence known, hammering their bills against the tree's dry surface. They are "cavity nesters" and their bodies are built for the task with thick skulls, powerful neck muscles and beveled, chisel-like bills. A woodpecker's ability to climb along the vertical path of a tree trunk is made possible with strong grasping feet and sharp curved nails to form a triangular foot-grip for support. The woodpecker's barb-tipped tongue and sticky saliva help it get insects from deep crevices. Unlike other cavity-nesting birds, woodpeckers rarely use bird houses because their instincs instruct them to bore out their own cavities.

Woodpeckers may create more than just one hole in a year and probably will not nest in the same hole the next year, thus creating many cavities for secondary cavity nesters such as bluebirds, martins, chickadees, house wrens, squirrels, and owls - who cannot excavate cavities themselves. Secondary cavity nesting wildlife such as these are dependent upon the availability of these abandoned nest cavities.

Location

Retaining a dead tree in your yard as a snag requires a carefully planned decision to determin whether the location of the snag is a safe spot and won't pose a hazard if they eventually fall. The best locations are away from picnic areas, car ports, power lines, gas meters, children play areas, gardens or any structure that has high activity from humans. Trees that are leaning, especially downhill or toward a house will not make the best choice for a possible snag.

On The Ground

Downed trunks and logs are useful to a variety of smaller creatures such as moles, chipmunks, salamanders, snakes, turtles, frogs and invertebrates. The underlying spaces are used for nesting, resting and protection while the elevated parts of the log are used for foraging as well as lookout sites. The base of the log provides foraging for woodpeckers and other insectivorous birds. Once the tree is on the ground, it affects the surrounding plant community which starts to change and a microhabitat is created around the log creating even more opportunity for animals and insects to thrive. If you live on a large property area that has bodies of water, a dying tree that falls and lands accross a stream or pond can be used as a bridge for mammals, and can also be used as a basking site for turtles or frogs.

Wood Piles

Another way to use decaying wood is by creating a wood pile with branches, twigs, bark and small logs. These create excellent cover for a variety of wildlife species including small mammals, birds, reptiles and amphibians and will serve many functions including shelter, perching, foraging, storing and hibernation. A wood pile is made by starting with a base of larger branches which creates entries for wildlife and then piling on other various sizes of branches in a mound or tepee-shape. Piling on enough branches and twigs that will bring the wood pile to a certain height will allow birds such as hummingbirds, robins, towhees and warblers to perch on the outside, while chickadees, thrushes and wrens will find shelter inside the brush pile. Wildlife that make use of the damp base areas deep inside the wood pile include chipmunks, rabbits, shrews, turtles, lizards, toads, salamanders and snakes.

A small rock pile consisting of some beautiful rocks and stones will also look stylish near a wood pile. Rocks absorb heat and will attract lizards and frogs giving them a place to hibernate, as a rock pile will help them to regulate their temperature. A pile of medium sized rocks stacked evenly will give them a safe place to multiply during the spring.

Dress Up Your Landscape

Snags and wood piles are used primarily for their functional aspects and are not intended to beautify areas of your home and garden. If there are rough areas in your yard that could use a little "dressing up", consider some decorative yard art from Wood Worx by John. There are many styles to choose from and all designed to give your home landscape a whole new personality. View their entire inventory by visiting www.woodworxbyjohn.com .

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