1. Twente Geese
   Trumpeter Swans
2. Golden Eagles
   Raccoon Dogs

The golden eagle is one of the best-known birds of prey in the Northern Hemisphere. They build large nests in cliffs and though they may travel up to 70 square miles, they always return in the springtime for breeding season.

1. Raccoon Dogs
   Macaws
2. Turtle Doves
   Vulpinis

The turtle dove is a migratory species that travels throughout Europe and the Middle East. During the cold winter months, they can be found in southern Africa.

1. Atlantic Puffins
   Barn Owls
2. Albatrosses
   Prions

Atlantic puffins breed in Iceland, Norway, Greenland, Newfoundland and many North Atlantic islands. They can be found as far south as Maine in the west and the west coast of Ireland and parts of the United Kingdom in the east. Because they are protective of their nesting sites, they end up living a monogamous lifestyle.

1. Cockroaches
   Shingleback Skinks
2. Sandhill Cranes
   Sea Horses

The sandhill name refers to the habitat where these cranes are found. The Platte River, on the edge of Nebraska's Sandhills on the American Plains, is a prime example. Their monogamous lifestyle may be the reason their conservation status is of 'least concern.'

1. Sea Horses
   Gibbons
2. Black Swans
   Cockatoos

Did you know that gibbons are the fastest and most agile of all tree-dwelling, nonflying mammals? They can make leaps of up to 26 feet, and quickly too - with speeds of up to 34 miles per hour.

1. African Wild Dogs
   Red Foxes
2. Quaker Parrots
   Mute Swans

Quaker parrots are also known as monk parakeets. These parrots are the only ones who build a stick nest in a tree or on a man-made structure. All other types of parrots us a hole in a tree instead.

1. Orcas
   Jackals
2. Tula Fighting Geese
   Coyotes

The coyote is a canine native to North America. The average male weighs between 18 - 44 pounds while the average female is slightly smaller from 15 - 40 pounds.

1. Crows
   Tula Fighting Geese
2. Schistosoma Mansoni Worms
   Gibbons

There are many species of crows and they come from the genus Corvus. Also members of the Corvus genus are ravens, rooks and jackdaws. Did you know the main difference between a crow and a raven is simply that crows are smaller than ravens?

1. Titi Monkeys
   French Angel Fish
2. Gibbons
   Red Foxes

The red fox is the largest of the true foxes and can be found across the entire Northern Hemisphere, from the Arctic Circle to North Africa, North America and Eurasia. It mainly feeds on small rodents, but also target rabbits, game birds, and reptiles.

1. French Angel Fish
   Titi Monkeys
2. Sandhill Cranes
   Ospreys

French angelfish come from the Pomacanthidae family. They are found in the western Atlantic Ocean, from New York to Brazil, and also from the Gulf of Mexico to the Caribbean. They live at depths between two and 100 meters.

1. Ospreys
   Love Birds
2. Sea Horses
   Gray Wolves

A lovebird gets its name from Agapornis which is Greek for agape, meaning 'love,' and ornis meaning 'bird'). It is a small genus of parrot and is native to Africa.

1. Bald Eagles
   Titi Monkeys
2. Mute Swans
   Gray Wolves

Titis live in South America, from Colombia to Brazil, Bolivia, Peru and northern Paraguay. As mates for life, they are territorial and live in family groups that consist of parents and their offspring.

1. Bald Eagles
   Crows
2. Mute Swans
   Pigeons

The name 'mute' derives from these swans being less vocal than other swan species.The mute swan was first described by German naturalist Johann Friedrich Gmelin in 1789.

1. Macaws
   Pigeons
2. Bald Eagles
   Raccoon Dogs

Bald eagles are sea eagles. They are found near large bodies of open water with an abundant food supply and old trees for nesting. They swoop down and snatch fish straight from the water with their talons.

1. Gray Wolves
   Raccoon Dogs
2. Twente Geese
   Schistosoma Mansoni Worms

Did you know that a pack of these wolves is capable of bringing down an 1,100 pound moose? And what's more is that digestion only takes a few hours, so the wolves tend to feed several times in one day.

1. Schistosoma Mansoni Worms
   Twente Geese
2. Titi Monkeys
   Beavers

Beavers are the second-largest rodent in the world. They are known for building dams, canals, and lodges or homes. These colonies help protect them from predators.

1. Love Birds
   Albatrosses
2. Octopus
   Titi Monkeys

The octopus is a soft-bodied, eight-armed mollusc of the order Octopoda. Most of them live in solitude when they are not mating. They are also not known to travel far

1. Love Birds
   African Wild Dogs
2. Crows
   Red-Tailed Hawks

African wild dogs have a vast carnivorous diet. They hunt everything from wildebeests to warthogs, gazelles, ostriches, and buffalo, as well as hares, cane rats and foxes. They are hunted however by...lions! ROAR!!!

1. Condors
   Barn Owls
2. Prions
   Red-Tailed Hawks

Condors are the largest flying land birds in the Western Hemisphere. Two specific kinds of condors are the Andean condor and the California condor. As noted by their names, they inhabit certain areas of Spain and the United States.

1. Barn Owls
   Red Foxes
2. Sea Horses
   Emperor Penguins

Sea horses pair up and form bonds during breeding season. Though not all return to the same mate the following breeding season, there are many that show a high level of fidelity.

1. Black Vultures
   Emperor Penguins
2. Gibbons
   Brolga Cranes

Black vultures can be found from the United States to South America. Vultures receive legal protection in the United States under the Migratory Bird Treaty Act of 1918.

1. Prairie Voles
   Quaker Parrots
2. Albatrosses
   Brolga Cranes

Albatrosses nest on remote oceanic islands. Breeding season can take more than a year from laying to fledging, with a single egg laid in each breeding attempt.

1. Ospreys
   Coyotes
2. Prairie Voles
   Golden Eagles

Ospreys are also known as sea hawks, river hawks and fish hawks. They are large raptors and have a wingspan of 71 inches. They nest close to bodies of water to ensure they have an adequate food supply.

1. Anglerfish
   Black Vultures
2. Golden Eagles
   Pigeons

Pigeons, who feed mainly on seeds, fruits and plants, are arguably the most common bird in the world. Did you know that pigeon is a French word that derives from the Latin pipio, for a "peeping" chick?

1. Coyotes
   Bald Eagles
2. Red-Tailed Hawks
   Black Vultures

The red-tailed hawk is a bird of prey that breeds throughout most of North America. It is known in the U.S. as the 'chickenhawk,' despite the fact that it rarely preys on chickens.

1. Coyotes
   Brolga Cranes
2. Orcas
   Sea Horses

Also known as the killer whale, orcas are a toothed whale belonging to the oceanic dolphin family. Wild killer whales are not considered a threat to humans, but there have been cases of captive orcas killing or injuring their handlers at marine theme parks.

1. Gibbons
   Ospreys
2. Sea Horses
   Barn Owls

Barn owls are considered monogamous, but you could say it's all in the name of breeding. During non-breeding seasons they roost separately. As the breeding season approaches, though, they return to their established nesting site and meet back up with their 'partner.'

1. Whooping Cranes
   French Angel Fish
2. Emperor Penguins
   Turtle Doves

The whooping crane is the tallest bird in North American. Its lifespan is estimated to be 22 - 24 years in the wild.

1. King Penquins
   Macaws
2. Schistosoma Mansoni Worms
   King Penquins

Macaws eat a variety of foods, including seeds, nuts, fruits, palm fruits, leaves, flowers, and stems. They even eat wild foods that may be toxic to humans, but they are able to digest - must be all the clay they eat to neutralize these toxins!

1. King Penquins
   Jackals
2. Termites
   Tula Fighting Geese

The Jackals' most common social unit is a monogamous pair. They defend their territory from other pairs by vigorously chasing intruding rivals and marking landmarks around the territory with their urine and feces. Be careful where you step!

1. Shingleback Skinks
   Jackals
2. Bald Eagles
   Gray Wolves

Shingleback skinks are known scientifically as tiliqua rugosa. They are short-tailed, slow moving and blue-tongued. They are native to eastern Australia where some people call them 'sleepy lizards.'

1. Schistosoma Mansoni Worms
   Termites
2. Gray Wolves
   Whooping Cranes

Termites are among the most successful groups of insects on Earth, colonizing everywhere around the world, except Antarctica. Their colonies range in size from a few hundred individuals to enormous societies with several million. Eew!!

1. Schistosoma Mansoni Worms
   Beavers
2. Cockroaches
   Black Vultures

Several Australian species of cockroaches practice acoustic and vibration behavior as an aspect of courtship. They have been observed producing hisses and whistles, and tap the substrate in a rhythmic, repetitive manner when in the presence of a potential mate.

1. Black Vultures
   Orcas
2. King Penquins
   Raccoon Dogs

King penguins eat small fish, mainly lantern fish, and squid. They are less reliant on krill and other crustaceans than most other Southern Ocean predators. On foraging trips, they repeatedly dive as deep as 300 feet.

1. Trumpeter Swans
   Arctic Foxes
2. Whooping Cranes
   Humboldt Penguins

The Humboldt penguin is also referred to as the Chilean penguin or Peruvian penguin. It is native to South America and typically breeds in the coastal regions of Chile and Peru. They are named after the Alexander von Humboldt cold water current in which they swim.

1. Black Swans
   Prions
2. Arctic Foxes
   Bald Eagles

Black swans are large birds with mostly black plumage and red bills. As monogamous breeders, the male and female birds share incubation and cygnet rearing duties.

1. Bald Eagles
   Arctic Foxes
2. French Angel Fish
   Turtle Doves

The Arctic fox is also known as the white fox, polar fox, or snow fox. Native to the Arctic regions of the Northern Hemisphere, they are well adapted to living in cold environments and have thick, warm fur that is also used for camouflage.

1. Turtle Doves
   French Angel Fish
2. Cockatoos
   Atlantic Puffins

Cockatoos are parrots of the 21 species belonging to the Cacatuidae bird family, the only family in the superfamily Cacatuoidea. These monogamous birds prefer to eat seeds, fruit, flowers and insects and often feed in large flocks.

1. Crested Penguins
   Atlantic Puffins
2. Love Birds
   Gray Wolves

Crested penguins lay two eggs during breeding season, but tend to only raise one young successfully. These penguins have exhibited an odd phenomenon where their first laid egg is significantly smaller than the second. This is the reason why only one tends to survive.

1. Trumpeter Swans
   Gray Wolves
2. Sea Horses
   Albatrosses

The trumpeter swan is the heaviest living bird native to North America, weighing in at 15 - 30 pounds. They also have an impressive wingspan, which sometimes reaches more than 10 feet!

1. Anglerfish
   Gibbons
2. Raccoon Dogs
   Condors

Raccoon dogs are a group of canids indigenous to East Asia. As monogamous animals, they form pairs in autumn, ahead of their mating season which lasts from February to April.

1. Octopus
   Condors
2. Prairie Voles
   African Wild Dogs

Prairie voles live in dry fields that contain a cover of grasses and weeds. They make shallow underground burrows and runways through surface vegetation, and in the winter, they tunnel underneath the snow.

1. Mute Swans
   Emperor Penguins
2. Beavers
   Orcas

Emperor penguins are the tallest and heaviest of all living penguin species and are endemic to Antarctica. Their diet consists primarily of fish, but can also include crustaceans, such as krill, and cephalopods, such as squid.

1. Cockatoos
   Red-Tailed Hawks
2. Octopus
   Brolga Cranes

Brolga cranes are not considered endangered, however populations are showing some decline, especially in southern Australia. It is the official bird emblem of the Australian state of Queensland.