Phenology Networks
United States
Foliage Network
Hummingbird Monitoring Network
North American Hummingbird Migration Tracking
Maine Butterfly Survey
Mid-Atlantic Phenology Network
Minnesota Phenology Network (MnPN)
Monarch Watch
Ohio State University (OSU) Phenology Garden Network
Operation RubyThroat, The Hummingbird Project
Project BudBurst
Shenandoah National Park Phenology Project
USA-National Phenology Network
Wisconsin Phenological Society
International
Autralia ClimateWatch
Canada NatureWatch
Finnish Forest Research Institute Phenology Observations
European Phenology Network and Potsdam Institute for Climate Impact Research- List of "all phenological networks"
French Phenology Network (Obseratoire Des Saisons)
Japan Phenological Eyes Network (PEN)
Netherlands Phenology Network (de Natuurkalender)
Swedish Phenology Network
Swiss Phenology Network
UK Nature's Calendar
Citizen Science/ Wildlife Monitoring
Art Schapiro's Butterfly Site (California)
Bee Hunt!
California Avian Data Center
Cornell University's Citizen Science Projects
Ducks Unlimited Migration Map
EarthTrek- Global Citizen Science Program
Firefly Watch
FrogWatch USA
Galazy Zoo
Global Garlic Mustard Field Survey
Jelly Watch
Journey North: A Global Study of Wildlife Migration and Seasonal Change
Monarch Foundation
Monarch Larva Monitoring Project
MoveBank- For animal tracking and photo monitoring data
Native Buzz
Networked Naturalist- Engaging the Public in Ecological Research
North American Breeding Bird Survey
North American Pollinator Protection Campaign
Old Weather
Project FeederWatch
Project Squirrel
Redwood Watch
School of Ants
Sevengill Shark Sightings
Shark Observation Network
Texas Invasives
Texas Nature Watchers
The Great Backyard Bird Count
The Great Sunflower Project
Tucson Bird Count (Arizona)
Turtle Roadway Mortality Study
Whale FM
What's Invasive!
Wildlife Watch – National Wildlife Federation
Wildlife Health Monitoring Network
Wildlife Sightings
WildObs (Wildlife Observations)- Record, manage and share your wildlife encounters
Zooniverse
Other Resources
Aldo Leopold Foundation
Intergovernmental Panel on Climate Change (IPCC)
Integrated Taxonomic Information System
International Society of Biometeorology (ISB)
International Migratory Bird Day
National Biological Information Infrastructure (NBII)
The American Ornithologist's Union
The Maryland Ornithological Society
USGS National Climate Change & Wildlife Science Center