Some species of birds take the eggs or babies of other species. The parents of those species will guard their nest and try to chase away the predator birds. In the US, Red-tail Hawks will be chased by crows; crows will be chased by Grackles; Grackles will be chased by sparrows; House Wrens and Blue Jays will be chased by every bird in its neighborhood; and a Mockingbird will chase anything that gets in sight of its nest. If this bothers you, try setting very cracked egg shells beneath a small tree or other likely place for a nest (washing is not necessary). One reason for "nest predation" is to get calcium for a bird's own eggs. Nest defense and eating meat, however, are general and will persist.
Cause smaller birds are scared of larger birds eatind their young so the chase and attack it for it to fly away.
Yes, sometimes larger birds will attack smaller birds. Birds of prey often hunt small birds. Sparrowhawks take many different species, and kestrels take sparrows. However, not all large birds are predators. Turkeys are mainly vegetarian.
Some birds, like falcons, eat smaller birds, but large birds who aren't birds of prey don't
a behavior in which several smaller birds "gang up" on a larger bird
owls of any kind have no predators, but smaller birds of prey are often edible arrangements for larger raptors (Birds of prey)
mice, smaller birds, rodents, and maybe bats.
Negative Numbers.
in degrees of intensity you have 2 go larger to smaller not smaller to larger
Sharks, fish and manta rays are predators of the starfish. Larger starfish also prey on and attack smaller starfish.
yes, mostly birds have the ability to attack when disturbed or if it is being abused.
Birds have many predators in a bush environment. Lions, cheetahs, hyenas, and smaller predators all eat birds, particularly when there is no other larger food available.
I'm not sure you phrased that correctly. You might be thinking of a negative number, which is said to be smaller when it's larger and larger when it's smaller.