The Imperial Woodpecker (Campephilus imperialis) is (or was) a member of the woodpecker family Piciformes. It is (or was) the world's largest woodpecker species. In biology and ecology, extinction is the ceasing of existence of a species or group of taxons. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria Placozoa Subregnum Bilateria  Acoelomorpha  Orthonectida  Rhombozoa  Myxozoa  Superphylum Deuterostomia     Chordata (vertebrates, etc. ... Typical Classes Subphylum Urochordata - Tunicates Ascideiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders Many - see section below. ... Families Picidae Capitonidae Ramphastidae Galbulidae Bucconidae Indicatoridae Six families of largely arboreal birds make up the order Piciformes, the best-known of them being the Picidae, which includes the woodpeckers and close relatives. ... Genera Many, see text. ... In biology, binomial nomenclature is a standard convention used for naming species. ... John Gould (September 14, 1804 - February 3, 1881), was an English ornithologist. ... Genera Many, see text. ...

The male has a red crest, but is otherwise black, apart from the inner primaries, which are white-tipped, and white secondaries. The female is similar but the crest is black, not red. It was once widespread throughout the Sierra Madre Occidental of Mexico. The Sierra Madre Occidental is a mountain range in western Mexico and the extreme southwest of the United States, extending 1500 km from southeast Arizona (south and east of Tucson) southeast through eastern Sonora, western Chihuahua, Durango, Zacatecas, Aguascalientes to Guanajuato, where it joins with the Sierra Madre Oriental and...

This 60-centimeter-long bird is officially listed as "Critically Endangered", although the last positive sighting was in Durango, Mexico in 1958 and it is probably now extinct. The reason for its decline is probably loss of habitat, although it was probably set in motion by over-hunting. Orders Many - see section below. ... Categories: Stub | Mexican states ...

It preferred open forests made up of Montezuma Pine. It fed mainly by scaling bark from dead pine trees and feeding on the insect larvae found underneath. A dense growth of softwoods (a forest) in the Sierra Nevada Range of Northern California A forest (a. ... Species About 115. ... Classes & Orders Subclass: Apterygota Orders Archaeognatha (Bristletails) Thysanura (Silverfish) Monura - extinct Subclass: Pterygota Orders Ephemeroptera (mayflies) Odonata (dragonflies and damselflies) Diaphanopteroidea - extinct Palaeodictyoptera - extinct Megasecoptera - extinct Archodonata - extinct Infraclass: Neoptera Orders Blattodea (cockroaches) Isoptera (termites) Mantodea (mantids) Dermaptera (earwigs) Plecoptera (stoneflies) Orthoptera (grasshoppers, etc) Phasmatodea (walking sticks) Embioptera (webspinners) Zoraptera... Larvae are the plural of larva, juvenile form of animals with indirect development. ...

See Also

• Extinct birds

Artists rendition of a Giant Haasts eagle attacking New Zealand moa. ...

External links

• BirdLife Species Factsheet
• The Decline and Present Status of the Imperial Woodpecker of Mexico by James T. Tanner, Auk, volume 81, number 1, p. 74 (January, 1964).