There should be no obstructions blocking the entrance of the entrance of the nest box. You can prevent this. Use wood stock rough-cut on both sides so birds can grip surfaces. Pileated Woodpecker, Common Merganser 11 1/4" x 9 3/4" 24" 17" 4" Pileated 6"x5" C. Merg 20-30' P 12-17' CM 3' x 3' chicken wire - construct cone, line with tar paper and wire sticks in bottom. … Not on, under or too close to trees where squirrels can leap on to boxes. The largest of the cavity-nesting ducks, the Common Merganser feeds largely on fish and crustaceans and is found along large rivers and lakes. If full width wood stock is not available, use two 1″x 6″, or 1″x 8″ boards. You can put up a nest box to help if you live in the right region and habitat. Such adept swimmers, common mergansers will dive into raging torrents for fish, frogs and mollusks, even under ice until water is nearly completely frozen. Always protect with 3′ wide cone predator guards around the post, under the box. Drill or cut ventilation openings in the floor and under the roof. Plywood consists of glued, thin laminated panels. The common merganser eats fish. They are strong but prone to deterioration from moisture even when surfaces and edges are sealed with paint. Attach a guard to keep predators from raiding eggs and young. Floor Dimensions: 10" x 10" with ventilation holes (suggested 5). Cut a 5″ wide by 5″ square entrance opening with rounded corners located 30″ above the floor (to top of opening). They usually vary from 5 1/4″ to 5 1/2″ wide and 7 1/4″ to 7 1/2″ wide. A large cavity (or box) is needed for this species, with an entrance of 4.5 x 5 inches allowing easy access. See. Mount 4′ above water, 6′ if above ground, higher if it is likely to attract the curious. The first formal description of the common merganser was by the Swedish naturalist Carl Linnaeus in 1758 in the … Wrens  |  Chickadees  |  Nuthatches  |  Woodpeckers  |  Phoebes & Flycatchers, Bluebirds   |   Swallows & Martins   |   Platform Shelters   |   Raptors   |   Ducks. Wrens  |  Chickadees  |  Nuthatches  |  Woodpeckers  |  Phoebes & Flycatchers, Bluebirds  |  Swallows & Martins  |  Robins & Platform Nesters  |  Raptors  |  Ducks. If you do this, bend the sharp needle ends over and fold behind. Please do not attract duck families and … Stagger these holes so that all are not in line along a single wood grain. Drill regular pilot holes in secondary work pieces. Suitable Nestbox Size: 33 inches tall. squirrels may use this box. Find plans and helpful tips! The below nestbox is designed for the Common Merganser. The Common Mergansers nest in cavities made by Pileated Woodpeckers or natural cavities. Fasten duck boxes firmly to metal (preferable) or to wood posts. Common mergansers breed from Alaska, the southern Yukon, Labrador, and Newfoundland south to central California, Arizona, New Mexico, southern Chihuahua and east of the Rockies to Minnesota, Michigan, New York, New England and Nova Scotia. Common mergansers nest in tree cavities, nest boxes, cliff crevices, and on the ground, generally near clear-water rivers in forested regions and on … They build nests in tree hollows, cliffs and they nest in boxes provided especially for them. Don't forget to monitor your nest box and submit nesting data to NestWatch! Side Opening Doors may be better than hinged roof doors for duck houses and possibly more convenient and safer for other birdhouses as well. Find a nest? In northern forests Common Mergansers will take up residence in nest boxes near lakes or rivers, as long as the boxes are large with a large opening. It makes for easy assembly in minutes with a power or hand held screwdriver. Reinforce with chamfer strips (inside) or batten strips (inside or outside) fastened perpendicular to vertical panels. All are specialist fish eaters. Common mergansers are monogamous and form pairs that usually last for at least one breeding season. Make a 10″ by 10″ floor (inside dimensions) and a 33″ floor to ceiling height (inside front). Place several inches of wood shavings in the box in spring. Although some experts disagree with the notion that ventilation openings are needed at all. Although some experts disagree with the notion that ventilation openings are needed at all. They breed in the summer and nest normally in a tree cavity; they also readily use large nest boxes where provided, requiring an entrance hole 15 cm (5.9 in) in diameter. Taxonomy. * These birds prefer a nesting platform, not an enclosed box. Make a Side Door. This reduces a tendency for wood to split. Mount 4′ above water, 6′ if above ground, higher if it is likely to attract the curious. A merganser clutch will include 6-17 pale buff eggs and be incubated for 28-32 days. Place in tree crotch and wire in place. Extend the back wall panel beyond both top and bottom. Predation from snakes, raccoons and a number of other mammals and birds is a horrible thing. The common merganser nest box has a 10″ by 10″ floor, 33″ inside ceiling, 5″ by 5″ square entrance opening located 30″ above the floor (to the top of the opening) and ventilation openings in the floor and under the roof. Make sure you put it up well before breeding season. They build nests in tree hollows, cliffs and nest boxes. See the common merganser nest box page and view or print nest box plans. Drill countersunk pilot holes in primary work pieces. Females lay six to sixteen ivory-white eggs around June which hatch after about one month of incubation. Common Mergansers are found throughout the northern hemisphere, and in winter can be seen in large flocks, sometimes of thousands of birds. Remove everything from the box and clean well after the brood rearing season is past. Obsolete English Names: goosander, American merganser, American sheldrake, buff-breasted merganser. Holes in line with grain can weaken and cause wood to split. Build a common merganser nest box with cedar, pine or most any softwood. Floor Dimensions: 10" x 10" with ventilation holes (suggested 5). If above ground, locate near ponds and where vegetation provides cover for ducklings to travel to water. Cut them to width and secure well. Please refer to this article for further information. Learn what features are best for birds and their safety, Find out which bird you can help give a home at your habitat and region, Clutch Size & Phenology for Common Species, Managing House Sparrows and European Starlings. We at 70birds have no interest in your information. Drill regular pilot holes in secondary work pieces. They usually vary from 5 1/4″ to 5 1/2″ wide and 7 1/4″ to 7 1/2″ wide. Nest boxes can be located from shoreline up to 1/3 mile from water. Common Merganser Nest Box Plans Common mergansers inhabit broad ranges of North America. Drill another mounting hole inside the box just under the roof. Suitable Nestbox Size: 33 inches tall. Do you want to build a nest box or have one already? Place a horizontal slab of wood immediately below the entrance hole on the front of the box. Drill pilot holes in these long panels for mounting. The common merganser nest box has a 10″ by 10″ floor, a 33″ floor to ceiling height and a 5″ by 5″ square entrance opening with rounded corners located 30″ above the floor (to top of opening). The Common Merganser, often called the Goosander in Europe, is the largest of the sawbilled ducks. Common Merganser (Mergus merganser) The largest of the cavity-nesting ducks, the Common Merganser feeds largely on fish and crustaceans and is found along large rivers and lakes. This species is in decline in certain regions. Find out here! There should be no obstructions blocking the entrance of the entrance of the nest box. A merganser clutch will include 6-17 pale buff

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