Advancing Ornithology in Florida. Supporting Research and Education about Birds. Uniting Amateurs and Professionals in the Study of Wild Birds.

Selecting a Quad and Block To Survey

The Florida Breeding Bird Atlas is a grid-based survey of the bird species breeding in Florida. The grid used for this project is based on US Geological Survey 7.5 minute topographic quadrangles (Quads) and each Quad is broken into six survey Blocks of 11 square miles.

Florida is contained partially or entirely within about 1038 Quads, as shown in the in the PDF of the USGS Florida Index Map. Go to it, partly enlarge the map to navigate to your county, then enlarge it more to figure out the Quad locations within the county and the name of the Quad that interests you the most. You can then go to the USGS's BBA Florida Atlas page view and print your map. Remember, we are doing the #6 Block (SE) first in each Quad. This trial year you can pretty choose the Quad you want. Once you have selected a Quad, email your selection to RickLWest@aol.com to be sure you have exclusive control possession to this piece of Florida to survey. Inexpensive county map are available from the Florida DOT at http://www.dot.state.fl.us/mapsandpublications/ or by calling 0/414-4050 for assistance. Also the FL DeLorme Atlas and Gazetteer, available from bookstoors, is very useful but costs $20. Both have tic marks on the borders to allow you to grid the maps into 7.5 minute Quads. The Gazeteer also has small + marks at the Quad corners.