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Birds

The History of the Quelili: How the Guadalupe Caracara Went Extinct

Quelili—Collectors were remorseless in their pursuit of the quelili, and the last examples of this Guadalupe caracara were seen in 1901. Two hundred and forty miles off the northwest coast...
Birds

Difference Between a Tree Sparrow and House Sparrow

It is difficult to identify the difference between a Tree Sparrow and House Sparrow. The House Sparrow is...
Birds

Dark-eyed Junco Male vs Female

Dark-eyed Junco Male vs Female - Dark-eyed Juncos exhibit sexual dimorphism, meaning that there are noticeable differences between male...
Birds

Wood Thrush Call – Most Heart Touching Song in North American birds

Wood Thrush Call has been observed to have one of the most heart-touching songs among North American birds....
Flowers

The Cruciferae (Brassicaceae)

Most of the urban flowers illustrated here have obvious similarities. The flowers of honesty, wallflower, and shepherd's-purse are,...

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