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Campephilus Reference Libraries

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Imperial Woodpecker
2006-06-30 14:47:08

The Imperial Woodpecker, (Campephilus imperialis), was a member of the woodpecker family Piciformes. It was the world's largest woodpecker species. This 23 inch long bird is officially listed as critically endangered or possibly extinct. However, the last positive sighting was in Durango, Mexico in 1958 and it is probably now extinct. The primary reason for its decline was loss of...

Ivory-billed Woodpecker
2006-06-30 14:40:36

The Ivory-billed Woodpecker, (Campephilus principalis), is a very large and extremely rare or extinct member of the woodpecker family, Picidae. It is officially listed as an endangered species, and until recently had widely been considered extinct. However one male bird has been reportedly sighted in Arkansas in 2004 and 2005. If its rediscovery is confirmed, this would make the...

Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.