Interesting website and e-mail for birders on the list from Wil Weber: = [EMAIL PROTECTED]
Thanks. Mike Nolan Ever wondered how many individuals of your favorite species inhabit the = planet? What is the most numerous land bird in North America? What is the most common wood warbler? What percentage of the total global population of Red-breasted = nuthatches is visiting your backyard feeder this Fall? For approximate answers these questions and systematic, scientific = guesses of total individual numbers of 440 species of North American = species, have a look at the Partners in Flight Landbird Population = Estimates Database at: http://rmbo.org/pif_db/laped/guide.aspx=20 Click on "Query Database".=20 You can query several versions of the database online or download the = full database into various spreadsheet formats to explore offline. The = estimates, based mostly upon 1990's data, may only be good to an order = of magnitude and the compilers offer full disclaimers to any implied = precision of estimates or methodology. Still, you have to appreciate the = effort. Most of the data is extrapolated from breeding bird census = records, but one could see the possibility of including other estimates = and methodologies in future updates of the database. To order the search = result table in taxonomic, rather than alphabetical sequence, click on = the column header "Sequence AOU". Estimated numbers include Michigan's Robin population of 5,900,000 well = ahead of the Red-winged Blackbird (3,600,00) or European Starling, = (3,400,000). At a continental scale, the American Robin is still the most numerous = species at 310,000,000. Some other relatively (or surprisingly) numerous = land species include:=20 Mourning Dove (310,000,000) Great Horned Owl (2,000,000) Common nighthawk (10,000,000) Alder Flycatcher (50,000,000) White-eyed Vireo (16,000,000) Red-eyed Vireo (140,000,000) Horned Lark (81,0000) Swainson's Thrush (100,000,000) Yellow-rumped Warbler (130,000,000) Dark-eyed Junco (260,000,000) I thought that some of the raptor species populations were = underestimated, based upon the HMANA "RPI/HAWKCOUNT" database numbers = (see:http://hawkcount.org/). Waterbirds are not included in this version of the database. Have fun! Will Weber ---------- If we are on another line or away from the phone, please leave your = number, best time to return your call and/or your e-mail address. =20 After hours and weekend phone appointments are available upon request. Sincerely, J. Michael Nolan, Director =20 Rainforest and Reef 501 (c)(3) non-profit *************************************************************************= ************************* "Outstanding-Affordable Field Courses in Rainforest & Marine Ecology" "Spanish/Cultural Immersion Programs: Spain, Mexico, Central and South = America" Rainforest and Reef 501 (c)(3) non-profit P.O. Box 141543 Grand Rapids, Michigan 49514-1543 USA Local/International Phone: 001.616.604.0546 Toll Free U.S. and Canada: 1.877.255.3721 Skype/MS IM: travelwithrandr AOL IM: buddythemacaw E-mail: [EMAIL PROTECTED] and [EMAIL PROTECTED] *Note: Please send inquiries to both e-mail addresses Web: http://rainforestandreef.org *************************************************************************= *************************
