In ethology, territory is the sociographical area that an animal of a particular
species ... In birds, golden eagles (Aquila chrysaetos) have territories of 9,000
hectares, least flycatchers' .....
In mathematics, a well-defined set clearly indicates what is a member of the set ...
Defined Cell Wall Are Called · If a Bird Species Has Well Defined Territories ...
Territorial boundaries may be marked by sounds such as bird song, or scents ... If
such advertisement does not discourage intruders, chases and fighting follow. ...
The male cougar has a large territory that may overlap the territories of several ...
Territorial species tend to be distributed over the landscape in a more regular .....
Undoubtedly if a much larger area could have been included in this study a ...
Territorial behavior is well established in this species, although only the male de-
.... define the limits of their territories by singing, which was not possible for lack of
... of territorial and other aggressive behavior has come to be well appreciated, as
evidenced in recent ... tory, if present, may be restricted only to the nest and the
area reachable ... food supply, and attraction of a mate on a relatively fixed and
well-defined .... necessity of defense of the nesting territory in this species. Leks...
Predators tend to have larger territories than omnivores or herbivores of the same
weight ... per unit time than lighter species; b) If certain restrictions are satisfied,
the collective bio- masses in a given large area ... supply as well, at least for birds
of similar size. Because of such ... territory be defined as "an exclusiv...
their ideas about the functions of bird territory—even if it deals with another group
of ... (b) that sexual as well as aggressive behaviour limits population density,. (c)
the frequency of ... In some instances it has been shown that where species of
different sizes ... fighting, and fighting and display in a clearly defined area. 2.
Apr 1, 1987 ... Bird territories: A key to understanding bird behavior. American Birds 41: ... and
the theory of territoriality has this advantage. ... company of other species of
finches. ... with the simple, broad definition sug- gested by ... Ironically. Nice came
to know her birds so well ... one year to the next; if they survived.
Range is more closely associated with the species as whole population. ... Birds
understand the well-defined limits of their territory, even without the aid of visual
... The best territories, the ones that have the most to offer in regards to food and ...
Very often birds of this species will use the same hunting perch nightly (Cohn-
Haft 1999). ... in tropical forests and is well hidden by its cryptic coloring (
Wetmore 1968). ... It is unclear if there are defined territories, but since this
species is nonmigratory, ... Breeding has been reported in March and April in
Colombia (Hilty an...