Bustard Bustard Bustards, including floricans and korhaans, are large, terrestrial birds living mainly in dry grassland areas and on the steppes of the Old World. They range in length from . They make up the family Otididae (formerly known as Otidae). Bustards are omnivorous and opportunistic, eating leaves, buds, seeds, fruit, small vertebrates, and invertebrates. Bustards are all fairly large with the two largest species, the kori bustard ("Ardeotis kori") and the great bustard ("Otis tarda"), being frequently cited as the world's heaviest flying birds. In both the largest species, large males exceed a weight of , weigh around on average
Xylota tarda Xylota tarda Xylota tarda is a Palearctic species of hoverfly. External images For terms see Morphology of Diptera<br> Wing length 5·5-8·5 mm. Large red areas on black abdomen. Wing membrane not infuscated. Dorso-apical white bristle on metatarsus 1. Antero-dorsal pale hairs on the basal half of femur 3 uniform not longer than 1/4 the depth of femur. The male genitalia are figured by Hippa (1968). The larva is illustrated in colour by Rotheray (1994) ). See references for determination (but see Speight for contradiction) Palearctic Fennoscandia South to Spain. Northern Italy (Apennines) Slovenia. Ireland East through Central Europe into European