The smock mill Goliath in front of the wind farm Growind in Eemshaven in the Netherlands. A windmill is a mill that converts the energy of wind into rotational energy by means of vanes called sails or blades. Centuries ago, windmills usually were used to mill grain (gristmills), pump water (windpumps), or both.
When bat guano is harvested, it is in a powdered form. Plants that can benefit from the use of bat guano fertilizer include vegetables, herbs, ornamentals, and fruit and nut trees.
In addition to profiles, distribution maps, and color photographs of the 47 native bat species, chapters consider such topics as echolocation, benefits of insectivorous bats, guano, summer-autumn swarming, winter habitats and hibernation, bats as food, controlling nuisance bats, attracting bats, wind power, conservation, thermal imaging, radiotelemetry, and acoustic identification.