The Rhea, native to South America, is a large bird that can grow on the weight of 60-80 kilograms. Although smaller than the ostrich and not aggressive like cassowaries, rheas have legs berotototot, hard spurs on their legs and kick them can bring the strength of 800 pounds per square inch.
8. Vultures
If cornered, a vulture (now many species are threatened with extinction) can hiss or make a low grunting sound to you. They, of course, also has a sharp curved beak that could hurt the meat, along with excellent eyesight.
7. Eagles
Eagle is a powerful beast (strong enough to carry something that weighs four pounds), aggressive birds, and although they are not much danger for humans in the wild, in an enclosed space their claws and beak can harm humans easily. (FYI, they can eat about half a kilo of fish in four minutes.)
6. Hawks and Falcons
Like other birds of prey, they have sharp talons and powerful beak which is used for hunting, along with speed and agility, creating a serious danger to humans, even if only a baby bird (its half-life 'can also be configured specifically for cutting through spinal cord of their prey).
5. Owls
Owls are raptors, or birds of prey, and they use the claws and beak to kill, capture and eat. In an enclosed space, or if the bird is in fear or anxiety, can cause serious harm to you.
4. Seagulls
Birds seagulls are very aggressive and are known to attack and even peck at the heads of the people to protect the nest and her child. In fact, the British were forced to carry umbrellas to avoid the attack, at least one woman was taken to the emergency room with deep beak wounds to the head, and the dogs were killed by the birds.
3. Canada Geese
Canada Geese are very aggressive, especially if you are (intentionally or unintentionally) near their nests or their young, then they will chase you to go and even bite you.
2. Ostriches
Ostriches are birds nervous and can be dangerous. They are the largest birds that still exist (they can reach over nine feet and 350 pounds) and speed they run very large (reaching 30 miles per hour for 10 miles straight). Like the cassowary, they have strong legs (they kick can kill a hyena), also have sharp claws.
1. Cassowaries
Cassowary, an endangered species, large birds that live in the rainforest, forest and swamp in Australia. Cassowary unpredictable, aggressive and known for their large feet, and scratching. Kicks they are able to solve the bone, and they have claws can be equated with a dagger.
source: kaskus.us
