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, impecunious, impoverished, penniless refer to those lacking money. Poor is the simple term for the condition of lacking means to obtain the comforts of life: a very poor family. Impecunious often suggests that the poverty is a consequence of unwise habits: an impecunious actor.