Why a Muscovy run fails at the top, not just the bottom
A Muscovy defeats fencing from above, so begin your check by looking up rather than down. Unlike most domestic ducks, Muscovies keep strong, sharp claws on their feet and a perching instinct from their tree-nesting ancestry. A Muscovy will grip woven mesh, scramble upward, and sit on a top rail or gate frame to survey the yard, and from that perch the outside is one short drop away. Females are the greater risk: they are much lighter than the big drakes and can fly properly, clearing a standard run fence from a standing start if something startles them.
Walk the fence line and note every perch the run offers. Move equipment away from the fence, and where the fence itself is low, consider a inward-angled extension or netting over the run rather than simply adding height a climbing bird will treat as a longer ladder.
Mesh, claws and the damage strong Muscovy feet do over time
Inspect Muscovy mesh at claw height and at the height a scrambling bird reaches, not only at ground level. Those gripping feet tear at lightweight netting and gradually pull fixings out of soft timber, so look for mesh that has gone baggy, staples standing proud of the post, and individual wires bent outward into hooks.
These ducks scratch and rake soil powerfully while foraging, and a favourite raking spot against the fence undercuts the bottom edge over a season. Where it gives softly or a shallow trench has formed, pack it with stone and pin the mesh skirt down again before the trench becomes a crawl-under gap for a hen determined to nest outside the run, a classic Muscovy escape motive in laying season.
Gates and latches that must hold a heavy Muscovy's weight
Size your Muscovy gate hardware for weight, because a large drake leaning and pushing against a gate is a very different load from a small duck milling around it. Hinges sag first, so lift the gate by its outer edge and feel for play. A dropped gate opens a wedge-shaped gap at the top corner and drags at the bottom, and a Muscovy hen will work at either.
Test the latch under a firm shoulder push from inside. Bolts that stop short in a worn keeper hole can rattle free when a Muscovy shoves the gate repeatedly, so confirm the bolt seats fully and add a secondary chain or clip for the hours you are away. Also check the gate's crossbar on the inside face: if it sits at a height a Muscovy can stand on, move bracing to the outside or cover it, because that bar is a ready-made perch one hop below the top of the gate and the open yard beyond it.
A Muscovy-specific routine for roofs, trees and night checks
Add Muscovy roosting spots to your regular round, because this breed prefers to sleep elevated and will test anything that gets it higher. At dusk, count the flock on their roosts rather than at the feeder; a missing Muscovy is most often found already perched somewhere high, inside or outside the boundary, and finding her before dark matters because she will stay put overnight wherever she settled.
Repeat the full climb-focused check after storms, which drop branches onto runs and loosen netting, and whenever you add a new bird, since newcomers get chased and a chased Muscovy hen flies first and looks later. If a bird does clear the fence, search trees, rooftops, and fence posts nearby before searching the ground. To widen that search quickly, KinsLe's Lost Pet Alert System sends a free alert to nearby Circle of Love members through KinsLe, and a neighbour who spots your Muscovy can message you directly.