Llobregat Delta, Spain with 449 records
Ebro Delta, Spain with 137 records
Yellowstone National Park, USA (United States) with 120 records
Cap de Creus, Spain with 91 records
Aiguamolls de l'Empordà Natural Park, Spain with 85 records
Merritt Island National Wildlife Refuge, USA (United States) with 83 records
Isla Holbox, Mexico (Southern) with 71 records
Everglades National Park, USA (United States) with 67 records
Bolsa Chica Wetlands Reserve, USA (United States) with 64 records
Gallocanta Lagoon, Spain with 60 records
Bear River Migratory Bird Refuge, USA (United States) with 59 records
Grand Teton National Park, USA (United States) with 56 records
Bolsa Chica State Beach, USA (United States) with 50 records
Barcelona City, Spain with 50 records
El Cedral, Mexico (Southern) with 43 records
Orlando, USA (United States) with 43 records
Collserola Natural Park, Spain with 36 records
Khao Yai National Park, Thailand with 36 records
Teich Bird Reserve, France with 35 records
Picos de Europa National Park, Spain with 34 records

This is a list of the top 20 specific localities, sorted by the total amount of materials.