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definitions - Bird_feeder

bird feeder (n.)

1.an outdoor device that supplies food for wild birds

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definition of Wikipedia

synonyms - Bird_feeder

bird feeder (n.)

birdfeeder, feeder, mangeoire

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analogical dictionary

device[Hyper.]

bird feeder (n.)


Wikipedia

Bird feeder

                   
  Red-headed woodpecker on a bird feeder

A birdfeeder, bird feeder, bird table, or tray feeder are devices placed outdoors to supply bird food to birds (bird feeding). The success of a bird feeder in attracting birds depends upon its placement and the kinds of foods offered,[1] as different species have different preferences.

Most bird feeders supply seeds or bird food, such as Millet, Sunflower (Oil and Striped), Safflower, Niger seed, and rapeseed or canola seed to seed-eating birds.

Bird feeders often are used for birdwatching and many people keep webcams trained on feeders where birds often congregate.

Contents

  Types of feeders

  Seed feeders

Cyanistes caeruleus -garden bird feeder-8.ogv
 
  A Blue Tit eating peanuts from a garden feeder

Seed feeders are the most common type. These can vary in design from tubes to hoppers and trays. Sunflower seed or mixed seed are popular for use in these feeders and will attract many songbirds such as cardinals, finches, and chickadees. Black Oil Sunflower seed is especially popular with bird enthusiasts. The outer shell of Black Oil Sunflower seeds are thinner and easier to crack than other types of Sunflower seeds. In addition, the kernel is larger than striped or white sunflower seeds.[2] Black Oil Sunflower seeds also contain a large amount of fat; therefore they are especially good to use in the winter. Most bird feeders are designed to dispense sunflower-sized foods, but there are specialty "finch feeders" with smaller openings to dispense the tiny Guizotia abyssinica (Niger seed), which is a favorite of smaller finches.

  An empty bird-seed dispenser

Seed feeders are mainly squirrel proof, tube-like or hopper. Due to the need of keeping squirrels away from the bird food, manufacturers have created different defense mechanisms that may deter squirrels from getting close to the seed. Some seed feeders come with mechanisms that are weight sensitive and which shut off the access to the seed ports whenever a heavy weight is detected. Birds can still feed as they weigh less and the ports remain open under their weight. Other seed feeders are designed to be mounted on poles as it is believed that squirrels reach seed feeders more easily from trees than from poles. The simplest type of squirrel proof feeder is a tube-like feeder surrounded by a metal cage. These feeders also offer protection from larger and more aggressive birds. Tube seed feeders are primarily made of clear plastic tubes with plastic or metal caps, bases and perches. Hopper bird feeders look like a house and attract a wide range of birds such as finches, cardinals, blue jays, sparrows and titmice.

  Hummingbird feeders

  A hummingbird feeder with red nectar

Hummingbird feeders, rather than dispensing seed, supply liquid nourishment to hummingbirds in the form of a sugar solution. This mixture is often colored red to attract birds. Likewise, some hummingbird feeders have red accents or red glass to help attract hummingbirds. Yeasts tend to grow in hummingbird feeders and spoil the solution, so they must be refreshed frequently and kept very clean to avoid harm to the birds. See the article on hummingbirds for more details. Ants and other insects are also attracted to hummingbird nectar. Smearing petroleum jelly on the feeder's may prevent the ants from crawling to the feeder, but the birds cannot clean the petroleum jelly from their feathers, so alternative methods should be found.

Hummingbird top fill feeders are popular among bird lovers because they are easy to fill and clean and also because they do not need to be turned upright which means that there are less chances that the nectar is spilled. The sports bottle top fill hummingbird feeders have the design of a sports bottle, with a mechanism that works similarly to such a bottle.[3] With this type of feeder, one has to push down the plastic container in order to close the nectar reservoir and then to unscrew the cap and pour the nectar. After the cap is replaced, the body of the nectar reservoir can be pulled up. This type of bird feeder has the advantage that the feeder does not need to be turned upside down to be refilled and which results in less nectar wasted by spilling. The traditional top fill hummingbird feeders are ones of the most popular bird feeders. There is also a plunger type of top filling hummingbird feeder which comes with a small plunger in the container that creates the vacuum seal when the lid is tightened and the nectar will start flowing only when the lid is sealed correctly to the feeding ports.[4]

The bottom fill hummingbird feeders include a traditional bottom fill feeder and several variations of it. The traditional ones are filled from an opening at the bottom of the nectar container but many manufacturers have come up with improved variations of the traditional style of feeder, to make feeding birds easier and with less nectar wasted. Some bottom fill feeders come with a funnel-like opening at the bottom of the container, through which the feeder is filled. Other bottom filled hummingbird feeders can be attached to one's window to provide a close-up of the birds.

  Oriole feeders

Oriole feeders, which are traditionally colored orange, also supply such artificial nectar and are designed to serve New World orioles, which have an unusually shaped beak and tongue. These orioles and some other birds also will come to fruit foods, such as grape jelly, or half an orange on a peg.[5] Hummingbirds will also feed from Oriole feeders.

Oriole feeders usually have nectar containers made of glass or plastic, which are designed to attract the orioles. Oriole feeders should be cleaned at least once a week and even more often when the temperatures are higher.[6] Oriole feeders also come in top fill, bottom fill and dish-like designs.

  Suet feeders

  Bushtits on a suet feeder

A suet feeder is typically a metal cage-like construction with a plastic coating that contains a cake or block of suet to feed woodpeckers, flickers, nuthatches, and many other species of insect eaters. Suet logs are also very common. These wooden logs have holes drilled out for suet to be inserted. Suet is high in fat which helps to keep birds warm and nourished during the cold winter.

  Other

  Chinese blue-and-white porcelain bird feeder from the reign of the Xuande Emperor (1425–1435)

Birds housed in wired or glass cages can be fed with electronic bird feeders. The electronic bird feeders store a few days or even a few weeks worth of bird food, depending on the feeder chosen, and automatically replenish the dish when it is empty.[7]

Providing a varied array of tastes and feeding venues will result in less competition for food and dining spots, just as a well-planned garden will provide many plants that supply different types of seeds and nectar. A shallow birdbath can attract as many birds as a feeder but it must be safe from cats, kept clean, and refreshed frequently with clean water to avoid mosquitoes. The birdbath should be placed where a frightened bird can fly up easily to an overhanging limb or resting place if disturbed or attacked.

  Squirrels

  Squirrel eating from bird feeder

Squirrels may also help themselves to the contents of bird feeders, often not merely feeding, but carrying away the food to their hoard. There are various anti-squirrel techniques and devices available to thwart attempts by squirrels to raid bird feeders.[8] Several manufacturers produce feeders with perches that collapse under the weight of anything heavier than a bird, or that use battery power to shock an intruder lightly or spin the perching area to fling it off. Caged feeders are often designed so that squirrels cannot reach the seed inside, but birds can easily fly through the cage's holes. Caged feeders are best to keep out gray squirrels. Chipmunks and red squirrels can usually enter caged feeders. Hot pepper in bird seed and suet has also been shown to be effective against squirrels without harming birds, according to a 1999 Cornell study by Curtis, Rowland & Dunn. Mammals, not birds, appear to be bothered by capsaicin oleoresin.[9]

The placement of a bird feeder can also prevent squirrels from accessing the seed. In addition, baffles can be used that prevent squirrels from gaining their footing above feeders. Below feeders, baffles can prevent squirrels from climbing any further, however squirrels are very agile and acrobatic and often find a way to overcome devices of any nature.[10]

  Negative impacts

  A Eurasian Sparrowhawk perched on a cane that supports a bird feeder.

Feeding wild birds does carry potential risks. Birds may contract and spread disease by gathering at feeders; poorly maintained feeding and watering stations may also cause illness. Birds at feeders risk predation by cats and other animals, or may incur injury by flying into windows. Steps should be taken to reduce the risks to birds, such as: regular disinfecting of feeders and watering stations, ensuring feed has not become moldy or rancid, and proper positioning of feeders to reduce crowding and window collisions. Birds are less likely to fly into windows that have a wooden lattice. Collisions with windows can also be reduced by using window decals.[11][12]

Depending on the feeder design and the type of feed used, species such as the House Sparrow can dominate the use of the feeder. As a result, the House Sparrow population can become inflated locally where feeders are used. In North America, where the House Sparrow is an invasive species, competition from House Sparrows can exclude the indigenous bluebirds from available nest sites as well as attack indigenous birds.

The use of bird feeders has been claimed to cause many other environmental problems; some of these were highlighted in a 2002 front-page article in The Wall Street Journal,[13] an article that provoked responses nationwide from bird enthusiasts and scientists who refuted the article's points and complained about the unbalanced coverage. [14]

Prior to the publication of the Wall Street Journal article, Canadian ornithologist Jason Rogers also wrote about the environmental problems associated with the use of bird feeders in the journal Alberta Naturalist.[15] In this article, Rogers explains how the use of bird feeders is inherently fraught with negative impacts and risks such as fostering dependency, altering natural distribution, density, and migration patterns, interfering with ecological processes, causing malnutrition, facilitating the spread of disease, and increasing the risk of death from cats, pesticides, hitting windows, and other causes.

  See also

  References

  1. ^ "Which Bird Seeds are Best?" from National Wildlife Magazine 1/31/2010
  2. ^ Thompson, Bill III. Top 10 Foods for Winter Bird Feeding
  3. ^ "Sports Bottle Top Fill Hummingbird Feeders". http://www.birdfeeders.com/advice/bird-feeding/types-of-feeders/hummingbird-feeders. Retrieved May 19, 2010. 
  4. ^ "Traditional Top Fill Hummingbird Feeders". http://www.birdfeeders.com/advice/bird-feeding/types-of-feeders/hummingbird-feeders#traditional. Retrieved May 19, 2010. 
  5. ^ Attracting Orioles
  6. ^ "Traditional Top Fill Hummingbird Feeders". http://www.birdfeeders.com/advice/bird-feeding/types-of-feeders/oriole-feeders. Retrieved May 19, 2010. 
  7. ^ "Pets Feeders Online Complete Review". http://www.petsfeeders.com/. Retrieved May 19, 2010. 
  8. ^ "Ten Ways To Outwit Squirrels?" from National Wildlife Magazine 12/1/2000
  9. ^ Fitzgerald, Christopher S.; Curtis, Paul D.; Richmond, Milo E.; and Dunn, Joseph A (August 1995). "Effectiveness of Capsaicin as a Repellent to Birdseed Consumption by Gray Squirrels". http://digitalcommons.unl.edu/nwrcrepellants/16/. Retrieved 5 March 2012. 
  10. ^ A Squirrel-Proof Bird Feeder Hadidian, John, Phd, Humane Society of the United States, Winter 2001, accessed September 3, 2009
  11. ^ Bird Feeding Basics, Audubon Magazine. retrieved on May 25, 2008
  12. ^ Feeding birds, The Royal Society for the Protection of Birds. Retrieved on May 25, 2008
  13. ^ Sterba, James B. Crying Fowl: Feeding Wild Birds May Harm Them and Environment, Wall Street Journal, December 27, 2002.
  14. ^ http://www.birds.cornell.edu/Publications/Birdscope/Spring2003/In_Defense.html
  15. ^ Rogers, J. 2002. Birdfeeding: Another viewpoint. Alberta Naturalist 31: 1-11.
   
               

 

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