(1) The only bird or avian species we know of is the so-called humble chicken.(2) This bird was an escapee of some manner of avian imprisonment, maybe a zoo.(3) A site with a much broader approach to avian information is the Mangoverde World Bird Guide.(4) For more information, see our new exhibits on vertebrate flight and avian flight.(5) This applies to explanations for the evolutionary origin of avian feathers and avian flight.(6) Ambient temperature is commonly thought to influence avian incubation behavior.(7) According to friends, he enjoys making avian analogies between rare birds and his political allies and enemies.(8) There are probably as many bird phylogenies as there are avian taxonomists.(9) Some parts seem to be like bird or avian viruses, while other bits are similar to bovine or murine viruses.(10) Within each nesting block, we tallied the number of avian nest predators observed.(11) We could not identify avian predators to species level from egg damage.(12) Vocalizations during the breeding season, such as song, are common among males of most avian taxa.(13) We suspect that many losses after emergence were due to avian predators.(14) In Germany more than a hundred wild birds have died of avian influenza, most of them on Ru00fcgen.(15) Ostrom introduced the cursorial predator hypothesis of the origin of avian flight.(16) This recent and exciting discovery is important in understanding avian origins and ancestry.