Over 3 Billion Birds Have Disappeared Since The 1970s

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Over 3 Billion Birds Have Disappeared Since The 1970s

By Trista - October 9, 2019

31. Pelagornis Sandersi

Pelagornis sandersi is a flying bird that went extinct more than 25 million years ago. It lived in North America during the Oligocene epoch’s Chattian age. Only one specimen of Pelagornis sandersi has been discovered.

This bird had a wingspan of more than 24 feet, giving it the largest wingspan of any flying bird that has ever been discovered. Its wingspan is twice the length of a wandering albatross. The Pelagornis sandersi was quite heavy, weighing up to 88 pounds. Many scientists were surprised to discover that because generally, birds of that size cannot fly. Because of its reasonably small body and long wingspan, it was able to fly.

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32. Guadalupe Storm Petrel

Like the Guadalupe caracara, this bird was a native of Guadalupe Island in Mexico. It’s closely related to the Leach’s storm petrel, but is slightly larger and has paler feathers under its wings. Guadalupe storm petrels laid their eggs in 15-inch deep burrows and left them to incubate for around 42 days.

In the late 19th century, cats were introduced to Guadalupe Island, leading to the population of Guadalupe storm petrels being practically decimated. Around 1906, there was still considered to be an abundant amount of birds on the island. The final two Guadalupe storm petrels were collected in 1911, and no other birds of this kind have been seen since.

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33. Passenger Pigeon

Also known as a wild pigeon, the passenger pigeon was a native species of North America. Its closest relative is the mourning dove, which has many similar characteristics. At one time, there were more than 3 billion and even possibly 5 billion passenger pigeons in North America.

The Native Americans hunted passenger pigeons, but their numbers especially began to dwindle when the Europeans arrived in North America in the 19th century. Pigeon meat started being marketed as a cheap food source, so hunting intensified on a massive scale for decades. Intense deforestation also contributed to the extinction of the passenger pigeon. The last type of this bird was killed in 1901.

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34. San Benedicto Rock Wren

The San Benedicto rock wren was a subspecies of the rock wren bird. It was a small perching bird that was a native of San Benedicto Island, located off the coast of Mexico. San Benedicto Island is a volcano.

The San Benedicto rock wren became extinct when the volcano erupted in August 1952. After two weeks, the whole island was covered in ash and pumice, and in some areas, it was piled over 10 feet high. The habitat of the San Benedicto rock wren was destroyed, and none of the birds were even seen again. This is one of the only birds who has not become extinct because of human involvement.

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35. San Clemente Wren

Another wren that has gone extinct in the past century is the San Clemente wren. This bird is a subspecies of the Bewick’s wren. It mainly lived on San Clemente Island, which is off the southern coast of California.

The San Clemente wren was about five and a half inches long and had a wingspan of just over two inches. They had brown and grey plumage and a white stripe above their eyes. The underside of the San Clemente wren was a mixture of white and grey. This bird was common on San Clemente island up until the early 20th century. After goats destroyed the habitat, they began to disappear. The last San Clemente wren was seen in 1941.

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36. Slender-Billed Grackle

The slender-billed grackle was a bird that was native to central Mexico. It was closely related to the great-tailed grackle. This bird lived primarily in the Toluca Valley and the Valley of Mexico.

This bird went extinct near the turn of the 20th century. No slender-billed grackles have been seen since 1910. They typically lived on the borders of lakes and marshes. These birds used aquatic vegetation for nest building. Once the population of Mexico began to grow, they adapted to be able to live in towns and around people. They ate a varied diet of plants, animals, and fruit. Its primary food source was maize, worms, and flies.

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37. Dusky Seaside Sparrow

The dusky seaside sparrow was a subspecies of the seaside sparrow. It lived in Florida along the St. Johns River and the natural salt marshes of Merritt Island. The last known dusky seaside sparrow died on June 1987. This bird was officially marked extinct in December 1990.

The dusky seaside sparrow was first discovered in 1872. It is separate from other seaside sparrows because of its distinct song and dark coloring. Conservationists tried to save the unique species by breeding it with Scott’s seaside sparrows, but the project was unsuccessful due to them only having male dusky seaside sparrows to work with.

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38. Tytthostonyx

Not much is known about the Tytthostonyx bird. It was a prehistoric seabird that lived approximately 66 million years ago. This bird was found in the Hornerstown Formation of New Jersey, which is on the border of the Cretaceous-Paleocene boundary.

Paleontologists believe that the Tytthostonyx was closely related to the modern-day pelicans, petrels, and albatrosses. Tytthostonyx is the single species in the Tytthostonygidae family. It was a seabird, so it most likely dined in fish and dove for them in the ocean like its descendants the pelican. This bird is considered to be one of the oldest members of the major seabird group.

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39. Bachman’s Warbler

The Bachman’s warbler is a small migratory bird that scientists believe is extinct. It breeds in the swampy cane and blackberry thickets located in the southeast. During the winter, Bachman’s warbler migrates to warm Cuba.

The estimated last sighting of the Bachman’s warbler was in Louisiana in August 1988. This bird was discovered in 1832 in Charleston, South Carolina. Experts believe that it is distantly related to the golden-winged and blue-winged warblers. Bachman’s warblers breed mostly in the Gulf Coast states along the Mississippi River as well as the southern Atlantic coastal plain. This bird fed on mostly spiders, caterpillars, and other types of arthropods.

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40. Imperial Woodpecker

The imperial woodpecker is a member of the Picidae woodpecker family. It is considered a tropical species. This bird is critically endangered and is most likely extinct.

If there is a chance that this bird is not extinct, it would be the largest species of woodpecker. It measures between 22 and 24 inches long. Compared to other woodpeckers, the imperial woodpecker has a faster wing flap rate as well as slower climbing strides. They are all black except for a red crest on the top of their heads. Some people refer to this bird as the Mexican ivory-billed woodpecker. They were mostly inhabitants of Mexico.

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