My #FirstSwallow sighting of the #Spring!
Before migration was understood it was believed that in winter swallows shed their feathers and hibernated packed together in the mud at the bottom of ponds. Accounts exist of fishermen claiming to have dredged them up in nets. https://t.co/qS8kG0HFZvMy #FirstSwallow sighting of the #Spring!
Before migration was understood it was believed that in winter 6410598 My #FirstSwallow sighting of the #Spring!
Before migration was understood it was believed that in winter swallows shed their feathers and hibernated packed together in the mud at the bottom
Before migration was understood it was believed that in winter swallows shed their feathers and hibernated packed together in the mud at the bottom of ponds. Accounts exist of fishermen claiming to have dredged them up in nets. https://t.co/qS8kG0HFZvMy #FirstSwallow sighting of the #Spring!
Before migration was understood it was believed that in winter 6410598 My #FirstSwallow sighting of the #Spring!
Before migration was understood it was believed that in winter swallows shed their feathers and hibernated packed together in the mud at the bottom