Mate changes by black-bellied whistling ducksDELNICKI, D.The Auk. 1983, Vol 100, Num 3, pp 728-729, issn 0004-8038Article

Changement de partenaire chez la perdrix rouge (Alectoris rufa) = Pairing change in the red-legged partridge (Alectoris rufa)PEPIN, D.Oiseau et la Revue Francaise d'Ornithologie. 1984, Vol 54, Num 4, pp 293-304, issn 0030-1531Article

Female-female pairing and sex ratios in gulls: an histological perspectiveCONOVER, M. R; HUNT, G. L. JR.The Wilson bulletin (Wilson Ornithological Society). 1984, Vol 96, Num 4, pp 619-625, issn 0043-5643Article

Female-female pairings in Caspian ternsCONOVER, M. R.The condor (Los Angeles, CA). 1983, Vol 85, Num 3, pp 346-349, issn 0010-5422Article

The logistik equation revisited: the two-sex caseCASTILLO-CHAVEZ, C; WENZHANG HUANG.Mathematical biosciences. 1995, Vol 128, Num 1-2, pp 299-316, issn 0025-5564Article

Mate guarding in the mallard Anas platyrhynchosGOODBURN, S. F.Ornis Scandinavica. 1984, Vol 15, Num 4, pp 261-265, issn 0030-5693Article

Pairing behavior and pair dissolution by ring-billed gulls during the post-breeding periodFETTEROLF, P. M.The Wilson bulletin (Wilson Ornithological Society). 1984, Vol 96, Num 4, pp 711-714, issn 0043-5643Article

Pair formation in the Mongolian gerbilAGREN, G.Animal behaviour. 1984, Vol 32, Num 2, pp 528-535, issn 0003-3472Article

Models for pair formation in bisexual populationsHADELER, K. P; WALDSTÄTTER, R; WÖRZ-BUSEKROS, A et al.Journal of mathematical biology (Print). 1988, Vol 26, Num 6, pp 635-649, issn 0303-6812Article

Pair production via crossed lasersFRIED, H. M.Laser and particle beams (Print). 2002, Vol 20, Num 2, pp 233-236, issn 0263-0346, 4 p.Conference Paper

THE INFLUENCE OF SEPARATION ON THE PAIR BOND IN BUDGERIGARS (MELOPSITTACUS UNDULATUS; AVES, PSITTACIDAE).TRILLMICH F.1976; Z. TIERPSYCHOL.; DTSCH.; DA. 1976; VOL. 41; NO 4; PP. 396-408; ABS. ALLEM.; BIBL. 1/2 P.Article

PAIR-FORMING AND BREEDING BEHAVIOUR OF THE CAPE SHOVELLER AT BARBERSPAN.SKEAD DM.1977; OSTRICH; S. AFR.; DA. 1977; SUPPL. NO. 12; PP. 75-81; BIBL. 17 REF.Article

LE COMPORTEMENT SEXUEL DU RATON LAVEUR (PROCYON LOTOR LOTOR).RICARD L; DORE F.1977; BIOL. DU COMPORT.; FR.; DA. 1977; VOL. 2; NO 3; PP. 239-248; ABS. ANGL.; BIBL. 11 REF.Article

FURTHER NOTE ON THE PAIR FORMATION OF THE COMMON MYNA, ACRIDO-THERES TRISTIS.SENGUPTA S.1975; J. BOMBAY NAT. HIST. SOC.; INDIA; DA. 1975 PARU 1976; VOL. 72; NO 3; PP. 856-857Article

REPRODUCTION EN CAPTIVITÉ DE L'AIGLE DE BONELLI Aquila fasciata L'ATTACHEMENT ENTRE PARTENAIRES = Breeding in captivity by the Bonelli's Eagle Aquila fasciata with special emphasis on mate attachmentPACTEAU, Christian.Alauda (Dijon). 2014, Vol 82, Num 2, pp 91-104, issn 0002-4619, 14 p.Article

Beam stability in strongly magnetized pair plasmas. Part 2ROWE, G. W; ROWE, E. T.Journal of plasma physics. 1999, Vol 62, pp 441-448, issn 0022-3778, 4Article

One Norwegian territory of the Marsh Tit Parus palustris during 35 yearsHAFTORN, S.Ibis (London. 1859). 1997, Vol 139, Num 2, pp 379-381, issn 0019-1019Article

Pair-bond dissolution in MallardsLOSITO, M. P; BALDASSARRE, G. A.The Auk. 1996, Vol 113, Num 3, pp 692-695, issn 0004-8038Article

Pairing strategies and mate choice in female robins Erithacus rubeculaHARPER, D. G. C.Animal behaviour. 1985, Vol 33, Num 3, pp 862-875, issn 0003-3472Article

Assortative mating by white-crowned sparrows at song dialect boundariesTOMBACK, D. F; BAKER, M. C.Animal behaviour. 1984, Vol 32, Num 2, pp 465-469, issn 0003-3472Article

Nesting behavior in a flock of chilean flamingosSTEVENS, E. F; BEAUMONT, J. H; CUSSON, E. W et al.Zoo biology. 1992, Vol 11, Num 3, pp 209-214, issn 0733-3188Article

La fidélité au partenaire et au nid chez le Pétrel de Bulwer Bulweria bulwerii de l'île Selvagem Grande (30°09'N, 15°52'W) = The faithfulness to mate and nest site of the Bulwer's Petrel Bulweria bulwerii of Selvagem Grande Island (30°09'N,15°52'W)MOUGIN, J.-L.Oiseau et la Revue Francaise d'Ornithologie. 1990, Vol 60, Num 3, pp 224-232, issn 0030-1531, 9 p.Article

Experimental seed production in Etroplus suratensis by induced pair formation and breeding through environmental manipulationSAMARAKOON, J. I.Aquaculture (Amsterdam). 1985, Vol 46, Num 4, pp 323-332, issn 0044-8486Article

Dominance in wintering waterfowl (Anatini): effects on distribution of sexesHEPP, G. R; HAIR, J. D.The condor (Los Angeles, CA). 1984, Vol 86, Num 3, pp 251-257, issn 0010-5422Article

Reproductive behavior and pairing chronology in wintering dabbling ducksHEPP, G. R; HAIR, J. D.The Wilson bulletin (Wilson Ornithological Society). 1983, Vol 95, Num 4, pp 675-682, issn 0043-5643Article