How many birds live near water? and how can you tell?
464215
you need to stand in the water and count them...
862828
Whats nice about the world is that if a hummingbird dies, generally, another will replace it, and so the cirle of life goes on.  Unless you plan on tagging the hummingbirds for surveillance / observation, I dont think you'll notice any missing hummingbirds.
43957
birds can be found all over the world. It all depends on what kind of bird.
54541
We don't really know how many creatures live in the sea, so it would be impossible to guess how much cubic space would be made available by the removal of the animals. \n\nStill, there is so much water that the ratio of water to earth would still be approximately 3/4.\n\nAll Water on Earth:\n\nOceans__________________97.24%\nAll ice caps/glaciers________2.14%\nGroundwater______________0.61%\nFreshwater lakes__________0.009%\nInland seas/salt lakes______0.008%\nSoil Moisture_____________0.005%\nAtmosphere______________0.001%\nAll rivers_________________0.0001%\nTotal____________________100%
1084527
The open sea covers about 70% of the earth to an average depth of about 2 miles. It is little wonder then, that some 312 species of birds in 17 families have adapted to this vast aquatic environment. These are the seabirds, that range in size from the large albatrosses with wingspans of up to 12 feet to the diminutive petrels that were named after the Apostle Peter by early seafarers because of their habit of dangling their feet in the water while hovering just above the sea surface, giving the appearance that they were walking on water
1010312
yes.\n\nthey are mammals and do not breathe underwater.\n\nthey take in air at the surface, so it does not matter what type of water they live in.
392635
That is a very tricky question indeed.  But I believe I have your answer.\n\nFirst, I will answer B.  Tulaga's theorem of ducks is that for each meter from a pond with ducks, an individual could expect 2 ducks plus 1 duck for each km/hr they are travelling at.  In other words Number of Ducks Following = (2 ducks x 5 meters away) + (1 duck x 6 km/hr) = 16 ducks.\n\nSecondly, everyone in the park plus the one duck left in the pond is laughing at Peggy.  Therefore, the answer to A is 100%.
591296
With many declining populations, there are no hard numbers available.  Because the organisms are very rare, it is often difficult to tell exactly how many are left in the wild without doing extensive surveys, and there simply isn't funding to track the populations of all endangered species that closely.\n\nWith other species, there are conservation programs in place, and populations are monitored as closely as possible.\n\nA good place to start to find information on specific endangered species is the IUCN (World Conservation Union) Red List of Threatened Species.  Their web-site can be found at http://www.redlist.org/info/introduction
841126
In temperate areas where there  there are seasonal differences, the number of rings on the scales like the rings on a tree, as well as the number of layers on otoliths (basically a bone in the inner ear) is a good indicator of age. However it doesn't work in warm environments because fish growth is constant and you can't make out the different rings. When its hot there is a period of rapid growth, and when the temp drops growth slows down, this is basically what you see on there. Unfortunately size estimates aren't usefull as not every fish will grow at the same rate, for example a 5 year old bass  in one area may be smaller than a 3 year old in another.
922127
No one is really sure how many there are, because it's hard to take a proper biological census of the critter.\n\nIn 1987, Indonesia banned the collection and export of Nautilus, but many other countries still collect and kill them.  Not too long ago, more than 10,000 were taken from the New Caledonia region, mostly for their ornamental shells.\n\nNautilus have a very slow reproductive rate, taking 5 to 10 years to reach maturity, and only laying about a dozen or so eggs at a time.  No one has ever managed to raise Nautilus in captivity from egg to breeding adult.\n\nAlthough their numbers are low in many regions, the seven or so species of Nautilus are widespread, found in most of the world's oceans.\n\nNo one's really sure if they should protected or not.
5053
There's a good bird silhouettes picture with 10 or more birds included at:\nhttp://www.birds.cornell.edu/programs/AllAboutBirds/Birding123/IdentifyingBirds/idSilhouette.html
264442
Hi,\nI dont think so... Ducks are amphibians (I think). That means they can live both on land and water. But they are primarily land creatures. I mean they cant go swimming forever can they?\nDucks can be found on small lakes too. Not neccessarily marshes.\nNo, I dont think all rivers have marshes. There is a river here in our town. It doesnt have marshes...
86757
There were many. Most ones you would never notice.\n\n3 species of jellyfish, over 20 species of fish, 39 species of snails, 10 species of coral.\n\nOn land, over 400 species of insects, over 50 species of spiders,\n\n3 new mammal species.\n\n100+ species of birds.\n\nAll of these were discovered in the past 10 years. Most are form microhabitats and mosty are threatened by habitat descruction and a few may already be extinct in just the past 10 years.
506079
It's too cold for them up north. We get all the birds down here, in the Winter time. Actually we have birds all year round. Just different ones in the Winter.
840108
probably like any sea bird.. I know I live on the coast of an ocean and the birds poo is usually greenish/grey/with specks of white in it.. I guess depending on the fish or junk they ate prior to that..
2205
A COCKATOO BIRD,WAIT IT SOUNDS LIKE HE HAS TWO?
434100
Birds have ears, however they do not stick out like ours. Birds will die anywhere. If they all went somewhere special there would be an enormous pile of dead birds somewhere and I have not yet heard of "Dead Bird Mountain".