1)The oldest bird lived about 150 million years ago.The Oldest Bird was discovered during Jurassic period.The oldest bird was known as an Archaeopteryx
2)A bird's normal body temperature is usually 7-8 degrees hotter than a humans'.
3)A bird's heart beats 400 times per minute while resting
4)It beats up to 1000 beats per minute while flying
5)There are birds (geese, cranes, eagles) that can extract sufficient oxygen from the air at nearly 30,000 feet above sea level.
6)Birds do not have teeth.
7)At least 4,000 species of bird are regular migrants, which is about 40 percent of the total number of birds in the world.
8)Birds can reach great heights as they migrate.
9)The Arctic tern has the longest migration of any bird in the world.
10)City birds use cigarette butts to line their nests in order to drive away parasites.This is because the nicotine in the cigarettes act as a natural pesticide.
11)Birds are the reason that hot peppers are hot.
12)Birds are last surviving lineage of Dinosaurs
13)Birds are supposed to have complicated and efficient pair of lungs and take up more space than humans or any other mammals.
14)The only known poisonous bird in the world is the hooded pitohui of Papua, New Guinea. The poison is found in its skin and feathers.
15)Scientists group birds into 30 categories.
16)Birds have hollow bones.Hollow bones help them to fly.
17)A bird’s eye takes up about 50 percent of its head; our eyes take up about 5 percent of our head.
18)Most of the birds eat twice their body weight in food every day. It is because the flying takes away lot of their energy.
19)Some bird species are intelligent enough to create and use tools.
20)Approximately 2/3 of all the bird species are found in tropical rain forests.
21)In the United States alone, there are over 40 million pet birds.
22)A bird’s feathers weigh more than its skeleton.
23)Birds have three fingers on each wing. The first, the thumb, supports a small part of the wing called the alula. The second and third fingers support the main flight feathers
24)Lighthouses are dangerous for birds. The beams attract birds, especially in misty conditions, and many are killed when they fly into the glass
25)Birds play a central role in many creation myths.
26)Birds that are raised for meat and eggs (poultry) are the largest source of protein eaten by humans.
27)Birds sense winter is coming by 1) changes in hormones that cause them to put on fat, 2) the changing length of the day, and 3) sensing small changes in air pressure, which is important in predicting weather changes.
28)Birds don’t fall off of a branch when they sleep because their toes automatically clench around the twig they are standing on.
29)The bird with the greatest wingspan of any other bird is the Wandering Albatross at up to 11.8 ft (3.63 m).
30)Approximately 75% of wild birds live for less than a year.
31)In the continental U.S. alone, between 1.4 billion and 3.7 billion birds are killed by cats annually.
32)Birds (Aves), also known as avian dinosaurs.
33)The first classification of birds was developed by Francis Willughby and John Ray in their 1676 volume Ornithologiae
34)Many birds, such as starlings, sing notes too high for humans to hear.
35)The bird that lays the smallest egg in the world is the bee hummingbird. Its egg is just under 0.5" x 0.25" and weighs a mere 0.02 oz.
36)The 1989 Exxon Valdez oil spill in Alaska polluted approximately 1,180 miles of coastline and killed up to 100,000 seabirds.
37)Birds have two sexes: either female or male.
38)A green woodpecker can eat as many as 2,000 ants per day.
39)Birds have a very efficient system for diffusing oxygen into the blood;
40)Birds have a ten times greater surface area to gas exchange volume than mammals.
41)There are around 10000 different species of birds worldwide.
42)Scientists believe that birds evolved from theropod dinosaurs.
43)Many birds kept as pets, including doves, parakeets, and lovebirds, enjoy living in pairs for companionship.
44)The penguin is the only bird that can swim, but not fly. It is also the only bird that walks upright.
45)It is estimated that one third of all bird owners turn on a radio for their pet when they leave the house.
46)The first bird domesticated by humans was the goose.
47)Mockingbirds can imitate many sounds, from a squeaking door to a cat meowing.
48)Kiwi birds are blind, so they hunt by smell.
49)Chickens that lay brown eggs have red ear lobes. There is a genetic link between the two.
50)The first chicken came from an egg laid by a bird that was not quite a chicken. Therefore, the egg came first.
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