For example, the weight of an object may be operationally defined by describing the operations of using a balance and standard weights. (Note that it is not the specific weight of the specific object which is operationally defined, but the process for arriving at it.his is especially so in the sciences, where most (if not all) formal definitions (as distinct from arbitrary naming) must be operational definitions or traceable to operational definitions. Operational definitions are particularly important in the physical sciences.
The winter of 2005 brought a pleasant surprise to Minnesota photographers. In mid January, the Great Gray Owl, and the Northern Hawk Owl arrived in large numbers to the Solana State Forest of McGrath, MN, where I live, as well as other areas of Northern Minnesota.
Identifying Features. Elf Owls do not have ear tufts or feathers on the top of their rounded heads. Their feathers are grayish brown in color. Their eyes are pale yellow and are highlighted by thin white eyebrows. The bill is gray with a horn-colored tip. Elf owls are the smallest owl in the Sonoran Desert.ild Status. The most important threat to the elf owl is habitat loss both of its riparian forest habitat and desert-scrub habitats. In Arizona, the elf owl is not uncommon, but it's numbers are decreasing in California and Texas.