( ( Bird ( Collections ( and ( Habitat ( Groups '' ) ) ) ) ) ( ( Notes ( on ( ( some ( of ( ( the ( bird species ) ) ( of Nebraska ) ) ) ) ( which ( are ( ( extinct or ) ( nearing extinction ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Bird) (NNPS Collections) (CC and) (NN Habitat) (NNS Groups) ('' '')) (VP (VBZ Notes) (PP (IN on) (NP (NP (DT some)) (PP (IN of) (NP (NP (DT the) (NN bird) (NN species)) (PP (IN of) (NP (NNP Nebraska))))) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (UCP (ADJP (JJ extinct)) (CC or) (VP (VBG nearing) (NP (NN extinction)))))))))) (. .)))
Bird Collections and Habitat Groups&quot; Notes on some of the bird species of Nebraska  which are extinct or nearing extinction.
(ROOT (S (PP (IN Around) (NP (CD 1200))) (NP (NP (NNS species)) (PP (IN of) (NP (NNS birds)))) (VP (VBP are) (ADVP (ADVP (RB currently)) (PP (IN at) (NP (NP (NN risk)) (PP (IN of) (NP (NN extinction)))))) (ADJP (JJ due) (PP (TO to) (NP (JJ human) (NN activity))))) (. .)))