Why do pigeons only live in concrete jungles? Do they live in the woods at all anymore?
206245
There are wild pigeons; they are called rock doves, though I sometimes think 'concrete doves' would be a better name.
619432
Without mountains or seabasins, water would cover the whole earth to a depth of 2.7 km, or 1.7 miles.\n\nBirds have not evolved.\nFor a bird to function it needs (for example): \nspecially designed light bones\na different design of lung so it can breathe while flying\nfeathers with tiny hooks and barbs so the filaments stick together\nan oil gland to oil their feathers\n\nAny of these features on their own would be useless, and would confer no benefit and would not be selected for. In any case, there is no known mechanism for the genetic information for these features to suddenly appear.\nA mutation might result in abird that can't fly any more, but it ain't going to grow a pair of wings on a lizard!\nThe idea that a bird evolved from something other than a bird has no scientific merit, and is not supported by any actual evidence. It is a (bad) philosophical idea.\n\nCheck out the woodpecker:\nextra strong beak\nstrong skull\nshock absorbing tissue\nsticky tongue for catching the grubs at the end of long tunnels\nit's long tongue is too long to fit in its beak so it wraps it around the skull under the scalp and inserts into the right nostril!\n\nRandom mutations or amazing design?
485298
I believe they are the same kind of creature.  There is an ape that was thought to be exintic gigantise pithagous, this is spelled wrong I know, I think some still live in remote areas and with man going into these areas they now are seen more often
5685
Usually for nesting purposes.  Their homes are the northern region.  They will fly south to escape the winter months and return home.  When they get home in spring, they lay eggs and have offsprings.  They are used to the cooler summer instead of staying in the hot south during the summer months.
238171
This time of year woodpeckers are looking for mates and they start pounding on things that make loud noises, such as houses.   Every spring I get randy woodpeckers pounding on my house.  I have friends who have a woodpecker that pounds on a metal grill high up on their house, at 5 in the morning!\n\nIt is possible you have insects in the wood of your house, and if so, food is the culprit. You might climb up on the roof and see if the woodpecker is eliminating an insect problem before you chase him away. Termites are much worse than a woodpecker.\n\nIf the woodpecker is drilling holes in the house, you could put some metal up there to protect the wood. If he's looking for a girlfriend, he'll keep pounding on the metal though.... \n\nOne of those giant squirt guns is a good alternative.
293468
In some areas, cockroaches are able to live outdoors, and make their way into human habitation from there.  Of the 4000 or so species of cockroach worldwide, only about a dozen are household pests.  Most of them live quiet lives on the forest floor and never bother anyone.\n\nThose few species that do become pests, though, are pretty major pests.  In areas where they cannot live outside, they get into homes by being carried in with contaminated foodstuffs, or even egg cases (ootheca) carried in on clothing or in the cracks of shoes.  Sometimes adults will hitch a ride from one building to another.\n\nAt one time the BioSciences building at the University of Alberta was infested with cockroaches.  After one lab, I picked up my backpack and a bunch of cockroaches ran out of the back pocket (where I had foolishly left an open bag of chips).  I left my backpack outside that night.
98721
I found a magpie nest with three large babies in it and the nest had no roof, so I have no Idea, but not all members of the species must build them. I would guess though that it provides protection from the elements, and provides shade when the parents are foraging. Some other species such as orioles and cliff swallows build enclosed nest, although I dont know of any corvids that do.
645575
If it's a medium-sized, rather ugly mottled black/brown bird that congregates in the evenings to form a roost community then it may be grackles.  They have no song, just a rather raucous squawking call and when they gather by the hundreds in the trees nearby, they are a nuisance of the first order.  Much worse than pidgeons.  We have them in Texas and I believe that at different times of the year they plague most of the US.
276002
They fly and land a lot like pigeons, so I don't think they have a distinctive flight pattern.  At least, not distinctive enough to notice.  It's probably more that it's easy to spot a dove in flight (because it's white) rather than the way it flies.
39504
They can go anywhere they won't get wet. This includes places like the bark and leaves of trees, porches, grass, or anywhere else. But I suspect many just die, and it is the babies that live on. Flies don't live very long anyways, and the larva grow up fast. If a generation of flies die, the next will be around in a little bit.
42581
Species -- There are about 300 varieties of squirrels around the world. In North America there are ten. Examples are the red/brown squirrels that live in evergreen trees and eat seeds of pinecones and the gray squirrel which lives in woods of oaks, ashes, and beeches and mainly eats beech nuts and acorns.\n\nSizes -- Their sizes vary considerably. For example, the gray squirrel can be up to three time as large as the red squirrel but smaller than a fox squirrel. A recently born gray squirrel is about one inch long and weighs as little as half and ounce to one ounce. The size of an adult gray squirrel is about 18 inches and can weigh up to a pound or more.\n\nWhere do they live? Squirrels typically live in trees -- in holes in the trunk, or in treetop crow's nests. The homes in the treetops are called dreys and sometimes consist of two rooms and a nursery!\n\nHow old do they live? Squirrels can live up to 10 or 12 years. After six years, they are considered old squirrels.\n\nCauses of death -- In addition of dying by being attacked by their natural predators, they can also die from man, traffic, and natural death.\n\nSquirrel's belong to the order "Rodentia", with 1650 species, it is the largest group of living mammals.  It also comprises forty percent of all present day mammal species. \n\nThere are over 365 species of squirrels in seven families. They include the tree squirrel, ground squirrel, and flying squirrel. Plus many squirrel-like mammals such as the gopher, ground hog and prairie dog. \n\nA baby squirrel weighs approximately one ounce at birth,  and is about one inch long. They do not have hair or teeth, and are virtually blind for the first six to eight weeks. \n\nA squirrel's brain is about the size of a walnut. \n\nThe average adult squirrel needs to eat about a pound of food a week to maintain an active life. \n\nThere's lots of other info in the links! Good luck!!
590168
They are eaten. If not by carnivores then by bacteria, fungi, and invertabrates. Think "circle of life" from the lion king.Then they go to that big perch in the sky.
475460
It lives in the Yenissei Area of the Taiga... Guess there are a lot of firtrees there! http://www.zooclub.ru/birds/vidy/228.shtml
565817
Not exactly, some animals can't live in the wild because they are weak, ect., and if we set zoo animals free they would not be used to the wild. But some animals are abused and mis treated in the zoo. I.E. Elephants in Tucson Zoo. Great Question!
675957
Nobody really knows, but the most convincing explanation I have seen is that parrots evolved as desert species. That might seem strange to people who are used to viewing parrots as animals of tropical rainforests but even today by far the greatest diversity of parrots is found in arid and semi-arid regions of Australia. Certainly the parrot beak and claw arrangements seem ideally suited to hard, dry seeds more common to arid regions than to he soft fruits of tropical forests.\n\nMany desert animals have anomalously long lifespans. That is because reproduction in desert regions is unpredictable. Rainfall varies so much that animals may only be able successfully reproduce every 5 years, or even less.  That is the situation today for many parrot species in Australia.\n\nThe first point to appreciate is that mating competition in male birds is incredibly stressful and shortens their lifespans markedly. In predictable environments that doesn’t matter because it doesn’t really matter how young a male bird dies. If every clutch survives it is more profitable for a male to mate with 20 females every year and die in 5 years than to mate with just one female every year and live for 20 years. \n\nHowever in unpredictable arid environments it is entirely possible that every single female mated with will fail to raise a clutch over an entire five year period. In such an environment a male that stresses himself by trying to be polygamous could easily die without leaving any offspring at all. With that sort of failure rate it become more advantageous for the males to become monogamous and survive for long periods than to be polygamous and survive for short periods. Although monogamous mate with fewer females they still produce far more young.\n\nWith reproductive opportunities so uncertain it becomes beneficial for a species to have longer lifespans. Birds of more benevolent climates can afford to gamble everything on a five years of reproductive success before dying but when  there is no certainty of raising even one successful clutch in that five year period such a strategy is suicidal.\n\nI guess the main to point to bear in mind is that reproductive potential is not the same as reproductive success, in fact the two are only tangentially related. While budgerigars may have a reproductive potentially of 2 young every year they never manage that in the wild.\n\n\nIt has been suggested that the same ancestral environmental uncertainty is the reason why so many waterfowl are monogamous and long-lived. Many waterfowl can only breed when rivers or wetlands flood and such floods may be many years apart. As with desert animals that makes breeding opportunities extremely sporadic and puts pressure on males to evolve long term commitments and long lifespans.
291693
Birds hear a lot better than we do, and worms moving around in soil make noise that is distinctive. OR, maybe they have Xray vision! :-)
272442
because the areas where they live are destroyed by man, meaning there is less food and less safe places to live. they do not breed easily so do not reproduce quickly enough to keep population numbers high. eventually there will be none left unless people help protect them.