Major Works
Simile as syntax
Clare opens with 'like a sudden thought'—the comparison isn't decorative. The duck's startling movement *is* how sudden thoughts arrive in the mind. He's using simile to describe consciousness itself, not just the bird.
Collective nouns matter
'Starnels' (starlings), 'rooks,' 'jackdaws'—Clare specifies species and their group behavior. This isn't generic 'birds.' He's cataloging the actual evening flight patterns of a particular landscape at a particular time.
Dialect and accuracy
'Suthy' is Clare's dialectal form (Northamptonshire). He's not using standard English to describe these birds—he's using the language of the place where he observed them. This isn't poetic elevation; it's fidelity to lived experience.
Verb precision
'Winnows' is the technical term for grain-sifting. Applied to the magpie's tail-motion, it suggests the bird is moving through air the way a farmer moves grain through air—precise, deliberate, separating one thing from another.