( ( ( ( ( During ( the ( breeding season ) ) ) ( , ( ( mourning doves ) ( ( ( are monogamous ) , ) ( remaining ( with ( the ( same partner ) ) ) ) ) ) ) ) ; ) ( ( the ( Wild ( Birds ( Unlimited website ) ) ) ) ( states ( that ( evidence ( has ( been ( found ( suggesting ( that ( ( mourning doves ) ( also ( ( pair up ) ( with ( ( the ( same mates ) ) ( for ( future ( breeding seasons ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (PP (IN During) (NP (DT the) (VBG breeding) (NN season))) (, ,) (NP (VBG mourning) (NNS doves)) (VP (VBP are) (ADJP (JJ monogamous)) (, ,) (S (VP (VBG remaining) (PP (IN with) (NP (DT the) (JJ same) (NN partner))))))) (: ;) (S (NP (DT the) (NNP Wild) (NNP Birds) (NNP Unlimited) (NN website)) (VP (VBZ states) (SBAR (IN that) (S (NP (NN evidence)) (VP (VBZ has) (VP (VBN been) (VP (VBN found) (S (VP (VBG suggesting) (SBAR (IN that) (S (NP (VBG mourning) (NNS doves)) (ADVP (RB also)) (VP (VBZ pair) (PRT (RP up)) (PP (IN with) (NP (NP (DT the) (JJ same) (NNS mates)) (PP (IN for) (NP (JJ future) (VBG breeding) (NNS seasons))))))))))))))))) (. .)))
During the breeding season, mourning doves are monogamous, remaining with the same partner; the Wild Birds Unlimited website states that evidence has been found suggesting that mourning doves also pair up with the same mates for future breeding seasons.
(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.