that bird heads for a spot beneath a cumulus cloud. Why?
210551
rising heat under that type of cloud causes thermal updraft which gives better lift to the bird
138735
You mean emperor penquins. They migrate hundreds of miles inland on Antarctica. They have to move inland to find land solid enough to support the weight of thousands of nesting penquins. The ice shelf around the continent would not be sufficient.
22614
the sun is covered by a cloud
504299
because the sun has gone over the horizon
35626
After covering some distance, fuel is burnt in the truck & hence, its weight is reduced. Thus, the bird's weight does not  stop the truck!
193888
It's looking around suspiciously.
120357
clouds would be very pretty
384476
That sounds like a Monarch Butterfly catapillar. They feed on milk weed and migrate between Canada and Mexico.
204100
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.
180867
BECAUSE THOSE AREAS MIGHT HAVE HIGH HILLS WHERE THE CLOUDS HIT HARD AND RAIN .MIGHT BE THE LOW AREAS AND FINALLY DUE TO CLOSE TO SEAS
676011
Normally something smart like the sky, the ceiling, the clouds...just look up to answer that question.\n\nA chicken eats when it's hungry!\n\nWhat's up chicken butt!!
83830
I like the one with two airline pilots, and thru the windshield you see a goat amongst clouds.  The caption is, "what is that goat doing way up here?"
112835
This is not always the case.  The phenomenon you speak of is most associated with cumulus clouds, those you see most in the  spring, summer, and fall, and which also produce the most weather (including tornadoes and the main source of hurricanes).  Cirrus and stratus clouds are generally quite flat or layered in structure and are responsible for most overcast days.  Most aren't very fluffy, though high winds aloft can sometimes cause them to take some pretty interesting shapes.\nCumulus are the "cauliflower" like clouds that form when air from below rises rapidly because its unstable.  Air is unstable when it is warmer than air around it.\nCumulus form when the ground heats up during the day causing the air near it to become unstable or when some "forcing" mechanism like a front causes lift.  The flat base forms when the air rising from below reaches saturation (air cools as it rises, and thus the relative humidity increases until it reaches about 100% when the cloud begins to form).    Because the source air for the cloud is all of about the same moisture and temperature, all of the rising air reaches saturation at the same level (termed the Lifted Condensation Level (LCL), when the air starts rising very near the ground).\n\nBecause the air is still unstable, it continues to rise.  That's why you get these large "towers" that build up, and the quicker they rise, the stronger the storm they produce.  As the air continues to rise, it begins to mix with the surrounding environment and above a certain level (the Equilibrium Level, EL) the air becomes stable (cooler than the environment).  Different pockets of air continue to rise  at different rates, and that causes the fluffy nature nearer the top of these clouds.\n\nCumulus are different from stratus and cirrus because they indicate large vertical motion and have a very distinct structure to them.\n\nBasically you could even think of a cumulus cloud as like blowing a balloon upwards.  The bottom is all at one defined spot, while as the air moves into the balloon, it spreads out.  In a cloud the rising air also mixes in different proportions with the environmental air, causing the unique shapes higher up in the cloud.  Hope that helped.  If it's not clear, let me know! :-)
330517
My pet Emu -Larry- says you are mistaken. In reality birds do not fly. See, you were outside, enjoying a lovely day when you stumbled upon a group of kids playing in the park. What you saw was nothing more than a fowl ball.
67406
It means Unidentified Flying Object
91167
They are less active in winter but they don't migrate. It was just looking for a place to rest for a minute that offered a little shelter from the weather.
398281
They're in the troposphere at an altitude of less than 6000 feet.  The tropopause (upper limit of troposphere) is between 30 000 and 35 000 feet.  The only clouds above it are a few cumulonimbus (thunder) clouds, which sometimes penetrate it and get up to 60 000 feet, occasionally cirrus (ice crystal) clouds form above it, and a rare type of cloud called noctilucent cloud, high up in the stratosphere, which I don't know much about.   The tropopause is a temperature inversion; a layer of warm air which acts as a lid, making it hard for air to rise and form clouds.  Remember, air only rises if it's warmer than the surrounding air.  Next time you fly in an airliner, which on long-haul flights flies just above the tropopause, you'll probably see a faint layer of haze just before you climb into the stratosphere.  It's trapped by the tropopause above it.