1.   At the end of the summer, he must seek out and defend a territory.

2.   Defended flowers can therefore be exploited more efficiently and it can pay a sunbird to defend a territory.

3.   For the rest of the year they wander their home ranges or defend their territories against all-comers.

4.   In other species, territories are defended for energetic, rather than reproductive, reasons.

5.   One of my pairs is actually reluctant to spawn if there is no-one from whom to defend their territory.

6.   The antelope will control and defend its territory.

7.   Serbian community leaders in Croatia during May criticized the UN peacekeeping plan agreed in January as not defending their territory from Croatia.

8.   And last month, Defense Secretary Donald Rumsfeld announced the creation of a military command whose sole mission is to defend American territory.

9.   And they say they have a complete right to defend their territory.

10.   As a rule, oystercatchers are monogamous birds, with one male and one female pairing up to defend a territory and rear their chicks.