The Martial eagle has very keen eyesight. However, conservation efforts have been successful and the breed is now common. This is important because these monkeys eat eggs from bird nests and, if not kept under control, could cause the extinction of other species. Their primary diet consists of fish and other birds, but they are generally opportunistic eaters. However, climate change is another enemy of the Sea eagle’s survival, as flooding and changing coastlines can cause its primary food source, fish, to become scarce. The unique appearance may be one of the reasons that the country where it is found has named the eagle the national bird. Although it breeds mainly in Russia it has also been located in Korea and Japan. They also occasionally kill adult deer, pronghorns, and calves. By preserving their energy, they have more than enough strength to pick up small animals weighing up to 17 pounds. one of the most specialized diet of any bird predator, It has a diverse diet, feeding on mammals, reptiles and other birds, eagles attacking humans and using small children as prey, In the past, this eagle was on the endangered species list, American law, only Native Americans can legally possess bald eagle feathers, some tribes in these regions had a tradition of training the bird to hunt wolves and other predators, Japanese have classified this bird as a National Treasure. They also hunted the bird for sport. Killing a Philippine eagle can land you in jail for 12 years. Bald eagles rely heavily on fish and carrion where available. The species is listed as “threatened” on the conservation scale, mostly due to deforestation in their habitats. But if its distinct appearance isn't impressive enough, its height and wingspan certainly are. Still, the Harpy Eagle remains the largest extant eagle in the world. The shorter wings help them navigate better through the forest, as opposed to other eagle species that mainly fly in large, open areas. Jessica Stewart is a Contributing Writer and Digital Media Specialist for My Modern Met, as well as a curator and art historian. The largest eagle in the world is the Stellar’s Sea Eagle. Laws against hunting the eagle and efforts to build up the population in captivity are currently underway. For a quick comparison, a female bald eagle averages up to 12 pounds, while the female Harpy Eagle weighs between 13 and 20 pounds. The bald eagle (Haliaeetus leucocephalus) is a bird of prey found in North America. In terms of appearance, its black, grey, and white feathers are identical in both males and females, with the raised feathers on its head giving the bird a quizzical expression. It has a diverse diet, feeding on mammals, reptiles and other birds. Thanks to an American law, only Native Americans can legally possess bald eagle feathers. The Philippine eagle has a distinctive, porcupine-like set of spikes atop its head that distinguishes the bird from other eagles. Other environmental factors contributed to a dwindling population. Source: Francesco Veronesi [CC BY-A 2.0] via Flickr. In south east Asia a monkey eating eagle rules the skies. This bird is listed as “vulnerable” on the extinction scale. However, the bald eagle was not always so beloved. It prefers the meaty, cold water fishes like Salmon, but it will also hunt other birds, small mammals and sea mammals such as seals. The Martial eagle is aptly named. Crowned hawk-eagle and Martial eagle known to take large bush buck or deer the Martial eagle although it feeds primarily on birds has the largest prey taken – “Martial eagles have predated adult duikers weighing up to 37 kg (82 lbs), perhaps the heaviest live prey item recorded. She cultivated expertise in street art which led to the purchase of her photographic archive by the Treccani Italian Encyclopedia in 2014. Some species have longer wingspans or longer length, but when accounting for length, weight and wingspan together, this bird is the biggest of all. The Japanese have classified this bird as a National Treasure, meaning it has protected status and may not be hunted. They prefer mountainous areas in Eurasia, North America and North Africa. That’s because it is the national bird and national animal of the United States of America. So what do Harpy Eagle's eat? It is known to prey on small mammals, other birds and reptiles. The largest eagle that ever lived Haast’s eagle (Harpagornis moorei) The largest eagle that ever lived on Earth, was the Haast’s eagle. Source: Sinisa Djordje Majetic [CC BY-SA 2.0] via Wikimedia Commons. As female eagles are always stockier than their male counterparts, it's worth noting that a male Harpy Eagle will weigh between 9 to 13 pounds. The hyrax it catches usually weigh around five pounds, but the eagle is capable of lifting more weight. While the eagle is strong enough to kill prey with one blow, it will injure larger prey and wait until the damage is too great for them to fight or flee. In fact, no other eagle has talons so large. Source: Derek Keats [CC BY-A 2.0] via Wikimedia Commons. the Harpy Eagle from r/NatureIsFuckingLit. The Asian golden eagle is also known as the Berkut, a word that translates into “golden eagle.” It is the largest known eagle in this subspecies. Another reason may be that it’s the most fearsome aerial predator in the Philippine islands. It was the basis in design for an eagle in the Harry Potter film series. The largest eagle in the world is Steller's Sea Eagle (Haliaeetus pelagicus), which weighs 5-9 kg (11-20 lb) and has a wing-span of 2.2-2.45 m (7 ft 2 in-8 ft 0.3 in). This large eagle of the sub-Saharan forests is known for the striking brown/white/orange patterns on its feathers and the tall, cap-like crest on its head. Eagles are an impressive sight for anyone who has seen one whether flying above or up close in captivity. Despite its overall large size, its wingspan is actually a bit shorter than some other eagles—this is due to habitat. The Harpy eagles of the rainforest prefer monkeys, however. White-tailed eagles are found in numbers across Europe, Russia and the mountainous regions of northern Japan. Photographs of the large eagle often pop up on Reddit, where people marvel at its size.For a quick comparison, a female bald eagle averages up to 12 pounds, while the female Harpy Eagle weighs between 13 and 20 pounds. Nests may grow so large that they make a tree top heavy, and will cause the nest or tree to fall over in storms. 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