A bird's storing behavoir is called harvesting witch means stprong food for the winter such as many mammals do in the fall.
hibernation to eat for later
Food caching. Its when a bird forages for food and stores it for the winter.
Preening
Birds start brooding behavior the day before hatching.
People who study penguins are called ornithologists or may specialize in a subfield called penguinology. They observe penguin behavior, study their habitats, migration patterns, and breeding habits to gain a better understanding of these unique birds.
it means birds
storing
When they do HA HA HA
A pack of birds is commonly called a "flock." However, specific types of birds may have unique collective nouns; for example, a group of crows is called a "murder," while a group of geese can be referred to as a "gaggle" when on the ground and a "skein" when in flight. The term used often depends on the species and their behavior.
No, there is no explanation at all in the film why they start to attack.
They are called Birds of Prey.
Peter Steyn has written: 'Nesting birds' -- subject(s): Birds, Sexual behavior in animals, Nests, Reproduction, Behavior 'Wankie birds' -- subject(s): Birds, Pictorial works 'Breeding Birds of Southern Africa (Helm Field Guides)'