Rank-dependent winter fattening in the Willow Tit Parus montanus von Haftorn, S

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Flock formation, flock size and flock persistence in the Willow Tit Parus montanus von Haftorn, S

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CONTEXTS AND POSSIBLE FUNCTIONS OF ALARM CALLING IN THE WILLOW TIT, PARUS MONTANUS; THE PRINCIPLE OF ‘BETTER SAFE THAN SORRY’ von Haftorn, Svein

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The Effect of Temperature and Clutch Size on the Energetic Cost of Incubation in a Free-Living Blue Tit (Parus caeruleus) von Haftorn, Svein, Reinertsen, Randi Eidsmo

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Independent discoveries of a new, apparently homologous call in the Willow Tit Parus montanus and Black-capped Chickadee Parus atricapillus von HAFTORN, SVEIN, HUANG, WEI-CHING, GRISWOLD, CORTLAND K., HAILMAN, JACK P.

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Initial winter flock formation in the Willow Tit Parus montanus. Do immigrating juveniles assess the quality of territorial adults? von HAFTORN, SVEIN

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Incubating Female Passerines Do Not Let the Egg Temperature Fall below the 'Physiological Zero Temperature' during Their Absences from the Nest von Haftorn, Svein

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The Diurnal Body Weight Cycle in Titmice Parus spp von Haftorn, Svein

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Egg-Laying Behavior in Tits von Haftorn, Svein

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One Norwegian territory of the Marsh Tit Parus palustris during 35 years von HAFTORN, SVEIN

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Ontogeny of the Vocal Repertoire in the Willow Tit Parus montanus von Haftorn, Svein

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Is the Coal Tit Parus ater Really the Most Subordinate of the Scandinavian Tits? von Haftorn, Svein

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Calls by Willow Tits (Parus montanus) during ringing and after release von Haftorn Svein

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Geographic variation of the storing behaviour in the Coal tit Parus ater: role of winter residency and environmental conditions von Brotons, Lluís, Haftorn, Svein

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A case of extra-pair copulation in the willow tit Parus montanus von Haftorn, S

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Thermoregulatory and Behavioral Responses during Incubation of Free-Living Female Pied Flycatchers Ficedula hypoleuca von Haftorn, Svein, Reinertsen, Randi Eidsmo

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Regulation of Body Temperature and Heat Transfer to Eggs during Incubation von Haftorn, Svein, Reinertsen, Randi Eidsmo

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Different metabolic strategies of northern birds for nocturnal survival von REINERTSEN, R. E, HAFTORN, S

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Seasonal and Diurnal Body Weight Variations in Titmice, Based on Analyses of Individual Birds von Haftorn, Svein

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Parental care of nestlings by the goldcrest Regulus regulus von Haftorn, S

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