Great Gray Owl - my personal favorite

Eurasian Eagle-Owl - piercing orange eyes and 5 parts in each wing represent the approx. 55,000,000 square kilometers that compose Eurasia

Northern Saw-whet Owl - a compass pointing north

Barn Owl - 6 stars for the 6 continents it inhabits against a barn red background

Short-Eared Owl - inspired by the owl’s scientific name "Asio flammeus"

Great Horned Owl - a moody broken saltire that happens to sort of form horned ears