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  • Patuxent Wildlife Research Center - Bird Population Studies
    The design of the BBS allows us to conduct an analysis that directly uses geographic information to illustrate geographic patterns in population change Route locations can be incorporated into a geographic information system (GIS), and population change can be displayed directly for each route
  • White-winged dove Distribution Animation - USGS
    Links to: Bird Population Studies at Patuxent Breeding Bird Survey Patuxent Wildlife Research Center
  • Vesper sparrow Species account - USGS
    Given these broad habitat preferences, Vesper Sparrows are fairly widespread summer residents in the United States and Canada Along BBS routes, this species is most numerous from Minnesota and Iowa across North Dakota and the prairie provinces to Montana, Idaho, Wyoming, and southwestern Oregon It is also locally numerous east to portions of Michigan and western Ohio (Relative Abundance Map)
  • General Introduction-BBS
    During the 1960s, Chandler Robbins and his associates at the Migratory Bird Population Station (now the PAtuxent Wildlife Research Center) in Laurel, Maryland developed the concept of a continental monitoring program for all breeding birds The roadside survey methodology was field tested during 1965, and the North American Breeding Bird Survey (BBS) was formally launched in 1966 when
  • Patuxent Wildlife Research Center - Bird Population Studies
    Version 2012 1 This webpage provides access to geographic information presented on the Breeding Bird Survey Analysis and Summary website GIS data presented include relative abundance maps and trend maps for individual species, and a shapefile containing route paths NOTE: Not updated for 2013
  • Welcome to the Patuxent Bird Quiz! - mbr-pwrc. usgs. gov
    Working at Patuxent, you soon realize that (1) the bird researchers here know their birds very well and (2) they do not hesitate to use that knowledge to make statisticians and computer jocks feel inferior So, to teach the hot birders something about humility, the statisticians and computer jocks devised this game Most reasonable people will agree that the game is quite challenging
  • The Patuxent Bird Quiz - Version 5. 1 - mbr-pwrc. usgs. gov
    The new, expanded Patuxent Bird Quiz lets you test your knowledge of North American bird identification, distribution in winter (from the Audubon Christmas Bird Count) and summer (from the North American Breeding Bird Survey), and song Note that we use the term "song" loosely, here, and that you might have look pretty hard to see some of the photographed bird species in North America!
  • Little blue heron Distribution Animation
    Links to: Bird Population Studies at Patuxent Breeding Bird Survey Patuxent Wildlife Research Center
  • Ring-necked pheasant Distribution Animation
    Links to: Bird Population Studies at Patuxent Breeding Bird Survey Patuxent Wildlife Research Center
  • Cattle Egret master list
    Links to: Bird Population Studies at Patuxent Breeding Bird Survey Patuxent Wildlife Research Center





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