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) an insect, arachnid, arthropod, worm, or other invertebrate. Some have magical abilities, and others are giant versions of real insects. Most vermin are considered mindless individually. Since many vermin are too small to model individually, they are often represented as swarms (clusters that act like single creatures and sometimes have hive minds). In 4th edition, type was split into types and origins. "Beast", "humanoid" and "monstrous humanoid" remained classified as creature types, while many subtypes from earlier editions were converted to keywords, as were some types, such as "undead" and "construct". "Animates" are magically animated creatures, such as golems, zombies