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.
An impoverished person who is supported at public expense; an indigent litigant who is permitted to sue or defend without paying costs; an impoverished criminal defendant who has a right to receive legal services without charge. PAUPER. One so poor that he must be supported at the public expense.