Alfred Newton partridge. Birds became an abiding interest. Those included the great bustard ("Otis tarda"), Montagu's harrier ("Circus pygargus"), ravens, buzzards ("Buteo" sp.), redpolls, wrynecks ("Jynx"), which are small woodpeckers that specialise in feeding on ants. "The vast warrens of the 'Breck', the woods and water-meadows of the valley of the Little Ouse, and the neighbouring Fenland made an ideal training-ground for a naturalist". This enthusiasm Newton shared with his younger brother Edward: the two carried out bird observation when they were together and corresponded when they were apart. In 1846 Newton went to a tutor in Biggleswade for a few months,
Xylota tarda Russia and the Caucasus then through Russia to Siberia and the Pacific coast (Kuril islands). Old woodland species running on the foliage of bushes and shrubs and on tree stumps and nearby bare ground. The larva has been found in sap runs at the base of the trunk of "Populus tremula" and in rotting wood of "Fagus". 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