Red-billed quelea is sometimes called "Africa's feathered locust". The usual pest-control measures are spraying avicides or detonating fire-bombs in the enormous colonies during the night. Extensive control measures have been largely unsuccessful in limiting the quelea population. When food runs out, the species migrates to locations of recent rainfall and plentiful grass seed; hence it exploits its food source very efficiently. It is regarded as the most numerous undomesticated bird on earth, with the total post-breeding population sometimes peaking at an estimated 1½ billion individuals. It feeds in huge flocks of millions of individuals, with birds that run out of food at
Creature type (Dungeons & Dragons) by Positive energy (whereas Undead are animated or empowered by Negative energy). A dragon is a reptile-like creature, usually winged, and tends to have magical or unusual abilities. An elemental is composed of one or more of the four classical elementals of air, earth, fire, or water. Elementals almost always have the extraplanar subtype. Most natives of the elemental planes are elementals, however there are some exceptions, for example most types of genies are native to the elemental planes, however genies are outsiders. A fey is a creature which usually has supernatural abilities and a human-shaped form. A fey also