migrate south
Birds will either drop whatever they are carrying or their body waste.
Minnows in standing water typically come from birds. Birds pick up the minnows and, in their attempt to carry or eat them, inadvertently drop them.
There is no average temperature for mountains; there is however a pretty good guideline which you can use to determine temperature at altitude. If the air is dry is about its 10 degree centigrade drop in temperature per 1000m of altitude and about 5 degrees centigrade drop per 1000 m if the air is saturated (contains a lot of moisture)
Bees and wasps can not fly in temperatures lower than 55°F. Once the temperature begins to drop, they must take shelter in their hive to keep their bodies warm or they will die.
usually, a pregnant female dog goes into labour within 24 hours of her temperature drops
Hibernation is remaining dormant in the same ecosystem. Migration is travelling to a differnet ecosystem. These are usually caused in the winter because of the drop in the climate's temperature.
Birds will either drop whatever they are carrying or their body waste.
It is true that many species of birds leave deciduous forest in the fall when the temperature starts to drop. They migrate south to places with warmer climates.
No one cares about it! Drop it!!
drop
drop
a steady drop in temperature is called a gradual front
The sudden drop in air temperature is a stimulus.
A sudden drop in temperature would be a response to a stimulus.
The sudden drop in air temperature is a stimulus.
Depending on where you are on the continent, once the sun goes down, the temperature drops consistently. Without any sunrises, usually July and August are the coldest months, just before the sun begins to rise.
When a bird migrates it is moving to a warmer spot in the world. How does it help them survive? well the temperature decreases in the winter dropping below zero, therefore not making the cold places a suitable place for the birds to live in. When they migrate they fly to some where closer to the equator where it is the hottest like Mexico. If exposed to the winters coldness for to long, the birds temperature will drop not giving the birds the right amount of body heat needed to survive. how those birds know when to migrate i assume the sudden drop in temperature gives them a hint that if they don't get a move on they're going to freeze.