1 Do not bring any infected birds or animals on to your property. 2  The adult fleas may be controlled by smearing the infected parts of the birds with a non-burning greasy substance such as petroleum jelly (for example Vaseline).  Birds can also be treated with a 0.5 per cent solution of maldison.
Definition of impoverished. 1  1 : reduced to poverty : poor an impoverished family/community. 2  2 : exhausted of richness or fertility impoverished soils. 3  3 of a fauna or flora : represented by few species or individuals.
poor. adj. poorÂ·er, poorÂ·est. 1. a. Having insufficient wealth to meet the necessities or comforts of life or to live in a manner considered acceptable in a society. b. Relating to or characterized by poverty: the poor side of town. 2. Deficient or lacking in a specified resource or quality: an area poor in timber and coal; a diet poor in calcium. 3. Not adequate in quality or quantity; inferior: a poor performance; poor wages.