Research methods
Citizen science
Research in which volunteers collect data, such as eBird checklists or national bird atlases.
Try a bird, a place or a month: "hornbill", "Costa Rica", "shorebirds".
Try a bird, a place or a month: "hornbill", "Costa Rica", "shorebirds".
Research methods
Research in which volunteers collect data, such as eBird checklists or national bird atlases.