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A common sign of skunks is the presence of 1 to 3-inch cone-shaped holes all over your lawn where skunks have foraged for grubs and worms. They are nocturnal but will occasionally forage in ...
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Some of the mounds are 3 m (10 ft) tall and 10 m (33 ft) wide, and they are spaced about 20 m (66 ft) apart. Underneath the mounds are networks of tunnels that required the excavation of 10 cubic kilometres (2.4 cu mi) of dirt. Scientists performed radioactive dating on 11 mounds. The youngest mound was 690 years old.
A modern view of a medieval pillow mound at Stoke Poges, England. The most characteristic structure of the "cony-garth" ("rabbit-yard") [1] is the pillow mound.These were "pillow-like", oblong mounds with flat tops, frequently described as being "cigar-shaped", and sometimes arranged like the letter E or into more extensive, interconnected rows.
Pit and mounds are small, persistent microtopographical features that present themselves after a disturbance event occurs and uproots trees via windthrow. The uprooted tree falls, and a pit forms in the forest floor where the root mass and associated soil matrix used to be.
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The smallest bird nests are those of some hummingbirds, tiny cups which can be a mere 2 cm (0.8 in) across and 2–3 cm (0.8–1.2 in) high. [1] At the other extreme, some nest mounds built by the dusky scrubfowl measure more than 11 m (36 ft) in diameter and stand nearly 5 m (16 ft) tall. [2] The study of birds' nests is known as caliology.
If an erosional hole is created in the nappe that is called a window. A klippe is a solitary outcrop of the nappe in the middle of autochthonous material. A tectonic window , or fenster (lit. "window" in German ), is a geologic structure formed by erosion or normal faulting on a thrust system.