( ( A raccoon ) ( ( is ( ( ( at ( ( ( the ( second feeding ) ) or ) ( ( trophic level ) ( when ( consuming nuts ) ) ) ) ) and ) ( at ( ( the ( third ( trophic level ) ) ) ( when ( eating ( a crayfish ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN raccoon)) (VP (VBZ is) (PP (PP (IN at) (NP (NP (DT the) (JJ second) (NN feeding)) (CC or) (NP (NP (JJ trophic) (NN level)) (SBAR (WHADVP (WRB when)) (S (VP (VBG consuming) (NP (NNS nuts)))))))) (CC and) (PP (IN at) (NP (NP (DT the) (JJ third) (JJ trophic) (NN level)) (SBAR (WHADVP (WRB when)) (S (VP (VBG eating) (NP (DT a) (NN crayfish))))))))) (. .)))
A raccoon is at the second feeding or trophic level when consuming nuts and at the third trophic level when eating a crayfish.
(ROOT (S (NP (NP (JJ Secondary) (NNS consumers)) (PRN (-LRB- -LRB-) (SBAR (WHNP (WDT which)) (S (VP (VBP eat) (NP (JJ primary) (NNS consumers))))) (-RRB- -RRB-))) (VP (VBP are) (VP (VBN considered) (S (VP (TO to) (VP (VB be) (ADJP (JJ trophic) (NP (NN level) (CD 3)))))))) (. .)))