Map will show all species of birds recorded in area of your interest at dates you indicated. Too big area and too large date interval can to enlarge a query of data so much so can to make hang of server. Therefore (!) both area and date interval have limit (time limit 100 days).
1. Please move red marker to the center of area of your interest.
2. Please use "+" and "-" buttons to enlarge/reduce radius of circle which have to cover of area of your interest.
3. Plese select interval of date of your interst.