Calendar Spring Checklist Year at a Glance Next Season Last Season Sunlight Plants Migrations Photoperiod (Mystery Class) Tulip Gardens Whooping Crane Monarch Butterfly Symbolic Migration Journey North explores the interrelated aspects of seasonal change. Changes in sunlight drive all seasonal change. Plants and animals around the globe must respond. Watch how the seasons affect the entire web of life — and report your own backyard observations.   Gray Whale Hummingbird American Robin Weather and Songbird Migration Habitat Projects Weather and Climate Phenology Climate Connections Weather and Climate Maps More Migrations and Signs of Spring (Our Limited Coverage Species and Events) Earthworms Eagle Frogs Ice-out Leaf-out Loon   Maple Sugar Oriole Red-winged Blackbird Barn Swallow Other Favorite Signs of Spring   Please Report Your Observations! This Season Teachers Kids Orientation Registration Search Copyright 1997-2010 Journey North. All Rights Reserved. Questions or comments? Contact us.