Sentence:  Some ſay that Rauens foſter <WSD>forlorne</WSD> children, / The whilſt their owne birds famiſh in their neſts: / Oh be to me though thy hard hart ſay no, / Nothing ſo kinde but ſomething pittiful. 
Meaning of the word marked with <WSD> tags:  Abandoned, deserted, left behind.