What do birds do when a tornado is coming?
452976
It depends on the type of bird. Many bird fly to another area. Some birds take cover on the ground. Not all bird escape the wrath of a tornado. After a tornado struck our farm, my father was cleaning up the fallen trees in one of our corrals and found that the several members of the flock of turkeys that had been roosting in them were dead on the ground, having never left the trees in which they were roosting.
1001358
Probably great-tailed grackles. They're like huge blackbirds, very noisy and aggressive. Here's a photo and a link to their distribution map. I usually see them when I'm in Arizona in the spring.
909972
How do you know they are looking for nesting sites?? Maybe they are just looking to roost or feed.  A few birds will build nests to sleep in, but most just build to breed in. The weather will trick birds sometimes and weather that is too warm due to things like global warming may confuse them.  Some birds such as the Anna's hummingbird will start nesting as early as December. Some hawks will also start to pair up early for the spring.
11502
In order for a tornado to form, a number of different things have to happen. The first thing that has to happen is that you have to have two different patches of air moving toward each other from opposite directions, with a warm one on the bottom and a cool one on the top.\n\nThe next thing that happens is that the warm air rises. (You may have learned about hot air rising in school.) After the warm air goes up, the cool air comes down to take its place. So now the warm and cool patches of air are moving side to side and up and down. So they make a spinning patch of air along the ground. This is probably pretty hard to imagine, so check out the picture:\n\nUsually when a tornado is starting, it happens during a storm. So there's lots of air moving around already. If a draft of air from the storm comes along close to the ground and then moves upwards (called an "up-draft"), it will pull the spinning air upwards.\n\nNow comes the part that we don't understand quite as well. So far the spinning air is still really really wide. Somehow it gets pulled in really tight so that it makes a tornado. (Scientists aren't exactly sure why this happens sometimes but not at other times.)
807683
Depends on the bird. Some settle down for the night alone, or on a nest. I assume you're talking about big flocks of birds like blackbirds and crows. Some of them look for a spot to roost together because of safety in numbers. They may fly all over at dusk to round up everybody and then fly to whereever they decide is a safe spot to spend the night.
506610
PINE CONES,,LEAVES,,STICKS AND TWIGS,,ALSO PUT DRYER LINT ON THE GROUND THE BIRDS WILL USE IT TO LINE THERE NESTS TO KEEP THERE EGGS WARM \nHOPE THIS HELPS
314785
A tornado WATCH means conditions are right for a tornado to occur.  A tornado WARNING means a tornado has been sighted in the posted area or is visible on radar.
1100204
storm chasers arnt employed.\n\nyou can be your own storm chaser though.\n\nweld some sheet metal and go chase the tornados. ftw!!1!
396017
In the US Midwest, tornadoes are usually formed when a cold, dry air mass moving south from Canada collides with a warm, moist air mass moving north from the Gulf of Mexico (or Baja California, or the Atlantic, or what have you). \nThis produces large thunderstorm clouds known as supercells, which can produce heavy rains, hail, and tornados. \nTornados are formed in areas of the supercell called mesocyclones; which draws air into the storm. When you hear meteorologists talk about the "hook echo" on the radar, they're pointing out the mesocyclone. The best simple explanation (so far) for why the tornado starts to rotate is the phenomenon of vertical wind sheer, where wind changes direction at different elevations.\nSo, if you have access to a weather radar; you can see hook echos like the one below. If you have a wind velocity view (some do, some don't), look for a large difference in wind speed and direction around that hook echo.
1109849
Actually this is true.  The Hurricane Hunters, an air wing of the National Oceanographic and Atmospheric Administration routinely flies P-3 Orion and C-130 Hercules Aircraft into the eyes of hurricanes to do weather observations.  They also commonly report seeing birds in the eyes of hurricanes.
1081328
why do birds suddenly appear..everytime you are near...\nyou probably have bread or they are after worms\nhope you get good answer\np.s. i wouldnt get too close they aim for your head when they need the toilet!  lol
1008339
Most tornadoes follow a recognizable life cycle.[6] The cycle begins when a strong thunderstorm develops a rotating mesocyclone a few miles up in the atmosphere, becoming a supercell. As rainfall in the storm increases, it drags with it an area of quickly descending air known as the rear flank downdraft (RFD). This downdraft accelerates as it approaches the ground, and drags the rotating mesocyclone towards the ground with it.\n\nAs the mesocyclone approaches the ground, a visible condensation funnel appears to descend from the base of the storm, often from a rotating wall cloud. As the funnel decends, the RFD also reaches the ground, creating a gust front that can cause damage a good distance from the tornado. Usually, the funnel cloud begins causing damage on the ground (becoming a tornado) within minutes of the RFD reaching the ground.\n\nInitially, the tornado has a good source of warm, moist inflow to power it, so it grows until it reaches the mature stage. During its mature stage, which can last anywhere from a few minutes to more than an hour, a tornado often causes the most damage, and can in rare instances be more than one mile across. Meanwhile, the RFD, now an area of cool surface winds, begins to wrap around the tornado, cutting off the inflow of warm air which feeds the tornado.\n\nAs the RFD completely wraps around and chokes off the tornado's air supply, the tornado begins to weaken, becoming thin and rope-like. This is the dissipating stage, and the tornado often fizzles within minutes. During the dissipating stage, the tornado becomes highly influenced by the direction of surface winds, and can be blown into fantastic patterns.\n\nAs the tornado enters the dissipating stage, its associated mesocyclone often weakens as well, as the rear flank downdraft cuts off the inflow powering it. In particularly intense supercells, tornadoes can develop cyclically. As the first mesocyclone and associated tornado dissipate, the storm's inflow is concentrated into a new area closer to the center of the storm. If a new mesocyclone develops, the cycle may start again, producing a new tornado. Occasionally, the old, or occluded mesocyclone, and the new mesocyclone produce a tornado at the same time.\n\nThough this is a widely-accepted theory for how most tornadoes form, live, and die, it does not explain the formation of smaller tornadoes, such as landspouts, long-lived tornadoes, or tornadoes with multiple vorticies. These each have different mechanisms which influence their development—however, most tornadoes follow a pattern similar to this one.
13372
According to answers.com\nhttp://www.answers.com/tornados%20\n\n"Tornadoes develop from severe thunderstorms, usually spawned from squall lines and supercell thunderstorms, though they sometimes happen as a result of a hurricane. They are believed to be produced when cool air overrides a layer of warm air, forcing the warm air to rise rapidly, though tornadoes over water (waterspouts) frequently are observed forming in the absence of convection or apparent strong surface temperature differences. Tornadoes, lightning, and sometimes hail are associated with thunderstorms. Many tornadoes appear at the tail end of mesocyclones. On weather radar screens, a characteristic "hook echo" marks the area where tornadoes are likely to exist."\n\nThe reference will give good idea for how do tornados form
395849
The Lark, who nests in what's left of meadows will feign injury to draw you away from her nest.  The Lapwing, the Tern and several ground nesting birds behave similarly.  It's very common near wind blown coastal areas where trees are rare and the birds through necessity have to nest on the ground that it occurs most commonly.
1096510
They tend to be isolated, unless the storm is very large (then they get attention).  Tornados and hail are more dramatic.  So, they make more exciting/ sensational news items.
977222
RUN!  Did you ever notice in movies and TV that when someone is running from a tornado, they run or drive ahead of it in the same direction is is moving?  Why don't they do the obvious thing and run diagonally to get out of it's path?  LOL\n\nIf you are in a building, take shelter in a cellar or basement if possible.  Find a spot in the house with the best reinforced walls and no windows, hopefully only the door you came in.  Stay away from the door, sitting in a corner away from it, but not in front of it.\n\nCover yourself with a matress or pillow, lying or stooping down low.  \n\nKnow who is in the building and where they are located, in case something happens and rescue workers need to dig for survivors.  This may make the difference in finding them in time.\n\nPRAY:  This has been known to bring about miracles.\n\nSue
1036961
That depends on the species, but certainly many species will croak more in repsonse to the fall in air pressure that signals an impending storm.