Juglans nigra English or Persian walnut, but thrives best in the warmer regions of fertile, lowland soils with high water tables, although it will also grow in drier soils, but much more slowly. Some soils preferred by black walnut include Alfisol and Entisol soil types. Walnut grows best on sandy loam, loam, or silt loam type soils but will also grow well on silty clay loam soils. It prefers these soils because they hold large quantities of water which the tree draws from during dry periods. Visually, black walnut is similar to the butternut ("Juglans cinerea") in leaf shape, and the range
Buff-sided robin binominal name translates as stag-bellied dappled tree-nymph. The generic name "Poecilodryas" (= spotted or dappled wood-nymph) refers to the spots on the wing and tail of species in this genus and its characteristic flight and perching behaviour. The specific name "cerviniventris" refers to the buff colouration of the chest, derived from "cervus" = stag or deer and "ventris" = vent or belly. The buff-sided robin is a medium to large sized robin species, with body length ranging from . Adult buff-sided robins are not sexually dimorphic and the sexes cannot be differentiated on the basis of plumage. However males are