Tons of acorns? It must be a mast year

Attack of the acorns: Weather, chaos, or a vast oak conspiracy?

Why are so many acorns on the ground in Chicago? It's a 'mast year,' experts say - Chicago Sun-Times

Oak – News, Research and Analysis – The Conversation – page 1

Rockin W Homestead

Bill Macfadyen: Alisal Fire Burns Santa Barbara County Back onto

It's a mast year for the humble Acorn!

Mast Years: What They Are and What They Mean for Your Garden - Gardening

Tons of acorns? It must be a mast year

Tons of acorns? It must be a mast year - Hella Home

What is mast, a mast year, and why do they occur? (featuring Red and White Oak identification)

Why are so many acorns falling this year in Texas?

Gardening: Acorns, acorns and more acorns