Bogs are also formed when a pond or lake begins to dwindle
due to the growth of nearby forests and other wetland
plants such as the sphagnum moss and peat (the decayed
remains of sphagnum moss and other decomposition of plant
material). The plants creep further toward the center
forming a mat over the remaining water and eventually the
pond becomes a small hole of open water at the bog's
center and that small hole of water will also disappear.
In some wooded bogs, the soil is so spongy and wet that a person must keep moving to avoid sinking. Some nature preserve areas have built walkways to protect the surface of the bog to allow the visitor to get close to some of the plants and wildlife found in bogs.
Most bogs occur in New England and across the
Great Lakes states and then sporadically down the
Appalachians into the Gulf Coast states.
|Bufflehead||Breeds in and around wooded bogs.|
|Common Goldeneye||Breeds in and around wooded bogs.|
|Connecticut Warbler||Breeds in damp Black Spruce and Tamarak bogs. Nest is in a concealed small hollow moss mound in grasses or at the base of a shrub.|
|Golden-crowned Kinglet||Breeds around wooded bogs of spruce trees. Nest suspended from stems or twig forks.|
|Lincoln's Sparrow||Breeds in and around borders of bogs. Nest on ground concealed by plant growth on drier raised mounds.|
|Nashville Warbler||Breeds in boggy forest edges. Nest on ground in hollow moss mound and concealed by shrubs, weeds and grasses.|
|Northern Waterthrush||Breeds in and around wooded bog edges. Nest is in a cavity of fallen tree base among the roots.|
|Olive-sided Flycatcher||Breeds in wooded bog areas.|
|Palm Warbler||Buries its grass nest down in the wet sphagnum moss at the bog's edges.|
|Red-breasted Nuthatch||Breeds in and around coniferous wooded bog areas.|
|Winter Wren||Breeds in moist spruce bog areas. Nest is a cavity often found on side of a tree or upturned tree root.|
|Yellow-bellied Flycatcher||Builds nest beneath the concealing roots of a spruce tree and sunk into a layer of moss which is concealed by the moss and other plant life.|