Friday, February 28, 2014
Thursday, January 23, 2014
Monday, December 30, 2013
Here's a great video of a female Magellanic Woodpecker excavating a cavity.
In a recent study, Jaime Jiménez and his research colleagues document predation of Magellanic Woodpeckers by invasive American minks on Navarino Island in Southern Chile. Navarino Island is a 955-square mile (2,473 kilometers) area located between Tierra del Fuego to the north and Cape Horn to the south. Mink apparently arrived on the island in the 1990s. Magellanic Woodpeckers are accustomed to an intensive level of feeding on the ground on the island, something they are not as prone to do on the mainland where three species of foxes and other potential predators exist.
The Magellanic Woodpecker is a charismatic species notable for being the largest extant woodpecker in the Americas (after the Imperial and Ivory-billed Woodpeckers, other members of the Campephilus genus that are possibly extinct). The authors present a compelling argument for broadening current management actions to control the mink population in order to protect the Magellanic Woodpecker and other less noticed native species.
Jiménez, Jaime E., et al. "Potential impact of the Alien American Mink (Neovison vison) on Magellanic woodpeckers (Campephilus magellanicus) in Navarino Island, Southern Chile." Biological Invasions (2013): 1-6.
Tuesday, November 12, 2013
I recently authored a detailed species account on the Red-necked Woodpecker at Neotropical Birds Online (NBO). It begins:
Each species account in NBO includes information on the identification, distribution, life history, conservation, and research references for a particular bird along with image and sound files for that species. Visit NBO to read more about profiled Neotropical bird species and to see how you may contribute to authoring or enhancing additional species accounts!
Sunday, October 27, 2013
This fine photo was taken by Javier Parigini, and it is posted here with his permission.
Sunday, September 22, 2013
Saturday, July 27, 2013
Sunday, February 10, 2013
Tuesday, January 1, 2013
You will find them in a Flickr group that I moderate called "Ivory-billed Woodpeckers & Others in the Campephilus Genus." Contributors share photos with this group on a weekly basis, so this marvelous collection of 2,500+ images is always growing!
Saturday, February 27, 2010
Everything that appears on this page, from top to bottom, is the Home Page.
- New Posts appear above this one
- They eventually get backdated to group them with their respective topics
- Resource Posts appear below this one
- They are here to serve new and returning visitors with readily available info on all the Campephilus species names, major media links, etc.
- They remain on the Home Page
- Easily Find What You Want
- Use Image Icons in the left sidebar to retrieve posts by species
- Select the News and Research buttons for posts on those areas of interest.
- Or, Select Any Category from the right sidebar to retrieve posts by category
Posted by Bill Benish at 10:00 PM
Friday, February 19, 2010
There are either 11 or 12 Campephilus species depending on how the Ivory-billed Woodpecker is classified. For more details, see a separate post at this link.
Various other sites offer the range map and other species information for each Campephilus woodpecker. See, for example, this page at Xeno-canto:
For a most incredibly detailed resource on Campephilus woodpecker nomenclature, visit Zoonomen's Zoological Nomenclature Resource at this link. (It will take some searching to find "campephilus" there. Select PICIFORMES in the left frame, and then Campephilus will appear near the bottom of the large frame).
Also, you can view a nice, and even more user-friendly, presentation of Campephilus taxonomic hierarchy and nomenclature drawn from Zoonomen at this site:
Here is an image from the Ivory-billed Woodpecker (Campephilus principalis) search result from Wolfram Alpha's computational knowledge search engine that details Campephilus taxonomy.
Source: Wolfram Alpha LLC. 2010. Wolfram|Alpha.
(accessed February 20, 2010).
By the way, if you've never entered your birth day, month and year into Wolfram Alpha, you may want to try it out here.
Tuesday, February 16, 2010
In his book In Search of the Ivory-billed Woodpecker, Jerome A. Jackson relates that a fossil species was described as Campephilus dalquesti by Pierce Brodkorb, an American ornithologist and paleontologist. This fossil species was discovered in Scurry County in central Texas, and dated to the late Pliocene epoch.
I wonder what C. dalquesti looked like. Maybe a bit like this dino-bird!? At least the colors look right. The dino-bird portrayed below is Anchiornis huxleyi - you can find more info here.
Check out the amazing video at this link:
The Internet Bird Collection (IBC) is a free audiovisual library "with the ultimate goal of disseminating knowledge about the world's avifauna." Many thousands of videos, photos and sounds at the IBC inform birders, ornithologists, conservationists, etc. and showcase a variety of bird behavior. The IBC welcomes people to upload and share their own bird videos, photos and sounds on the site.
As you'd expect, you'll find many Campephilus videos, photos and sounds at the IBC!
The Internet Bird Collection is a non-profit endeavor sponsored by the Handbook of the Birds of the World, whose publishers happened to select the Magellanic Woodpecker, the largest woodpecker in South America, to represent the entire Picidae family on the cover of Volume 7.
Some people were not quite as thrilled with that selection as I was. In an overwhelmingly positive review of the book, Geoffrey Carpentier had this to say about the cover:
The Macaulay Library contains the notable 10 min, 20 sec length recording of Ivory-billed Woodpeckers drumming, making kents and also other vocalizations all recorded by Arthur A. Allen and his team in April, 1935. It also contains a 1 min, 40 sec recording of what may be kent calls of the Ivory-billed Woodpecker recorded by John V. Dennis on February 25, 1968 in Texas.
Xeno-canto lets visitors to its site participate by discussing and identifying unknown sounds. And, if you record bird sounds, you should know that xeno-canto also lets people upload and share their own recordings on the site.
Also, don't miss the highly informative Species Overview pages on Xeno-Canto. Available from the left frame menu, these pages offer a summary of number of species sound recordings, photos, range maps and sonogram images. See this page, for example:
WikiAves Encyclopedia of Brazilian Birds is an amazing resource of Campephilus descriptive information, photos and sounds. WikiAves represents the four species of Campephilus woodpeckers, listed below, that can be found in Brazil.
The photographs that I have seen in WikiAves are among the most spectacular ones that I've seen anywhere.
In English and Portuguese, the four species of Campephilus in WikiAves are:
Although the entry on the Cream-backed Woodpecker is rather slim (as of this posting) the others have a wealth of descriptive information. And you'll find sounds and photos for all of them. You can cut and paste the Portuguese text into your favorite web-based translator to understand the entries.
There are 4 species of Campephilus that are native to Argentina which contain interesting and detailed profiles (en Español) along with dramatic illustrations of each species, except the Robust Woodpecker, at the SIB - Parques Nacionales - Sistema de Información sobre Biodiversidad site. Be a bit patient to allow this site to load.
In English and with their Spanish names, the four species of Campephilus at the SIB site are:
Monday, February 15, 2010
This posts highlights the extraordinary SORA project, the source of an incredible array of ornithological journal articles. The SORA project is described as follows at the site:
The SORA project is an open access electronic journal archive and is the product of a collaboration between the American Ornithologists Union, the Cooper Ornithological Society, the Association of Field Ornithologists, the Wilson Ornithological Society and the University of New Mexico libraries and IT department.
Of course, there are many interesting articles on Campephilus woodpeckers within SORA. For example, searching for the word "guayaquil" by keyword quickly retrieves this full-text article from within SORA:
|WILLIAMS||First Description of the Nest, Eggs and Nestling of the Guayaquil Woodpecker (Campephilus [Phloeoceastes] Gayaquilensis) (Wilson Bulletin: Vol. 92, No. 4, October-December, 1980)|
The nest cavity was in the main trunk about 6 m above the ground. Its irregularly shaped entrance was large enough (about 75 x 100 mm) to admit my hand, and it was about 30 cm deep. I could not reach the cavity’s bottom or its contents, but using a mirror, I saw 1 egg and 1 newly-hatched young. The shell of the hatched egg was still in the nest. The eggs were white and immaculate-typical large woodpecker eggs. The nestling was making weak chirping sounds. Its eyes were closed, and it appeared naked; however, in the dim light of the cavity, sparse down probably would not have been obvious. It had a conspicuous eggtooth. I visited this nest again at 13:50. After approaching within 6-8 m of the female at the cavity entrance, I made several color transparencies (Frontispiece). I never saw more than 1 adult at this site.
I am amazed at how little still is known of the breeding and behavior of the Campephilus woodpeckers.