A Small Hallucination

Hummingbirds are making their annual migratory visit to my home. The unlikely creatures are about the size of an adult human's thumb. They're so fast and elusive that spotting them- let alone getting a decent photograph- is extremely difficult. The creatures' very existence makes me question my own sanity. It's only because others tell me that they also see them that I know the hummingbirds are real.