Linked from
The 99 pages that link to Citizen science, each with the reason it gives.
Kreutz sungrazerRelated: Volunteers examining SOHO images have identified many Kreutz candidates.
MoorhenRelated: Bird counts and observations can track moorhen distribution and seasonal changes.
Barn swallowRelated: Volunteer sightings and nest counts help track this widely observed species.
DelichonRelated: Public counts help track house martin distribution and breeding trends.
Spanish dancerRelated: Diver sightings can document distribution and seasonal occurrence.
TetrigidaeRelated: Photographs and locality records can document otherwise underreported species.