Canada Goose (occasionally referred to as a Canadian Goose)

This is a large, sturdy flight feather from a Canada Goose, a bird known for its black head and neck with a characteristic white 'chinstrap'. These birds are heavy-bodied with wingspans reaching up to 5.5 feet. Their flight is characterized by powerful, rhythmic wingbeats and the iconic 'V' formation used during migration.

Uniformly dark fuscous-brown to charcoal grey on the dorsal surface, fading slightly to a lighter silvery-grey on the ventral side. There is no banding. The rachis is noticeably pale/creamy at the base, darkening toward the tip.

Densely pennaceous and tightly interlocked with well-developed barbicels (hooklets) to create a windproof surface for flight. The base near the calamus shows a small amount of plumulaceous (downy) structure for insulation.

Stiff, smooth, and notably waxy or oily. This texture is an adaptation for water-repellency and aerodynamic efficiency. The vane is very rigid to withstand the force of the downstroke.

Large size, dark brownish-grey color without patterns, extreme asymmetry of the vanes, and a thick, pale calamus/rachis base typical of large waterfowl.

Widely diverse including lakes, ponds, marshes, grain fields, and frequently urban parks, golf courses, and lawns near water. Highly adaptable to human-altered landscapes.

Native to Arctic and temperate regions of North America; widely migratory, though many urban populations in the Midwest (including Iowa) are now year-round residents.

Primary herbivore and seed disperser. They serve as a major prey source for large predators (as goslings) and are considered a 'sentinel' species for wetland health.

Mute Swan (larger, pure white), Sandhill Crane (more grey, different texture), or Domestic Goose (often larger calamus, color variations). The dark brown-grey and specific size are diagnostic for Canada Goose.

Canada Geese undergo a synchronous molt in mid-summer, losing all their primary flight feathers at once, rendering them flightless for about 40 days. This is likely when this feather was dropped near the lake.

Good to Fair. The feather shows some minor 'zipper' splitting in the trailing vane, likely due to contact with vegetation or during the shedding (molting) process. The tip is slightly worn.

Near a lake in Iowa