( ( Winter ( is ( an ( good ( time ( to ( feed birds ) ) ) ) ) ) ) ( , ( ( explained ( ( Edge , ) ( because ( birds ( have ( ( only ( short days ) ) ( to ( ( find ( enough food ) ) ( to ( ( keep ( them ( ( warm and ) alive ) ) ) ( through ( the ( long ( , ( cold ( winter nights ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (SINV (S (NP (NNP Winter)) (VP (VBZ is) (NP (DT an) (JJ good) (NN time) (S (VP (TO to) (VP (VB feed) (NP (NNS birds)))))))) (, ,) (VP (VBD explained)) (NP (NP (NN Edge)) (, ,) (SBAR (IN because) (S (NP (NNS birds)) (VP (VBP have) (S (NP (RB only) (JJ short) (NNS days)) (VP (TO to) (VP (VB find) (NP (JJ enough) (NN food)) (S (VP (TO to) (VP (VB keep) (S (NP (PRP them)) (ADJP (JJ warm) (CC and) (JJ alive))) (PP (IN through) (NP (DT the) (JJ long) (, ,) (JJ cold) (NN winter) (NNS nights))))))))))))) (. .)))
Winter is an good time to feed birds, explained Edge, because birds have only short days to find enough food to keep them warm and alive through the long, cold winter nights.
(ROOT (S (NP (NP (JJ Many) (NNS species)) (PP (IN of) (NP (NP (NNS birds)) (PP (IN in) (NP (JJ new) (NN england)))))) (VP (VBP fly) (ADVP (RB south) (PP (IN for) (NP (DT the) (NN winter) (NNS months)))) (S (VP (TO to) (VP (VB find) (NP (DT an) (NN environment)) (PP (IN with) (NP (JJR more) (NN food))))))) (. .)))