All birds in the family Trogonidae appear to be very responsive to recordings of their calls, which could indicate that their vocalizations are a territorial behaviour.
12.
In frogs, male territorial behaviour is often observed at breeding locations; calling is both an announcement of ownership of part of this resource and an advertisement call to potential mates.
13.
The species will also exhibit territorial behaviour during the nesting and incubation periods of their annual cycle, making vocalisations and flying at other birds to move them away from nesting sites.
14.
For instance, populations in southern Africa display territorial behaviour only during the few months of the rut, whereas in eastern African populations, territoriality is relatively minimal despite a protracted mating season.
15.
This small brown inhabitant of European coasts makes up for its drab appearance by having a territorial behaviour otherwise known only from the talk ) 14 : 18, 12 October 2016 ( UTC)
16.
Since Rodrigues receives less rainfall and has more seasonal variation than Mauritius, which would have affected the availability of resources on the island, the solitaire would have more reason to evolve aggressive territorial behaviour.
17.
Stridulation in several of these examples is for attracting a mate, or as a form of territorial behaviour, but can also be a warning signal ( acoustic aposematism, as in velvet ants and tarantulas ).
18.
Field researchers may make use of a wide range of techniques such as the use of dummy owls to elicit mobbing behaviour, dummy males or the use of call playback to elicit territorial behaviour and thereby to establish the boundaries of bird territories.
19.
Through his work on the methodology of plotting bird distribution, he became one of Ireland's most influential ornithologists; he also made contributions to the understanding of threat display and territorial behaviour and song, and was the first person to use ringing returns to estimate average age.
20.
Where others had postulated that physical separation could provide a barrier to interbreeding, allowing groups to evolve along different lines, Keith introduced the idea of cultural differences as providing a mental barrier, emphasising territorial behaviour, and the concept of the'in-group'and'out-group '.
