( ( Purple martins ) ( ( are ( monogamous ( ( ( birds and ) ( a ( mated pair ) ) ) ( will ( ( produce ( ( 1-3 broods ) ( of ( ( 3-8 eggs ) each ) ) ) ) ( during ( ( the summer ) ( nesting season ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Purple) (NNS martins)) (VP (VBP are) (ADJP (JJ monogamous) (SBAR (S (NP (NP (NNS birds)) (CC and) (NP (DT a) (JJ mated) (NN pair))) (VP (MD will) (VP (VB produce) (NP (NP (CD 1-3) (NNS broods)) (PP (IN of) (NP (NP (CD 3-8) (NNS eggs)) (NP (DT each))))) (PP (IN during) (NP (NP (DT the) (NN summer)) (NP (JJ nesting) (NN season)))))))))) (. .)))
Purple martins are monogamous birds and a mated pair will produce 1-3 broods of 3-8 eggs each during the summer nesting season.
(ROOT (S (NP (NNP Birds)) (VP (VB pair) (PRT (RP up)) (PP (IN with) (NP (NP (DT the) (JJ same) (NN bird)) (PP (IN in) (NP (NN mating) (NN season)))))) (. .)))
Birds pair up with the same bird in mating season.