Blar i NTNU Open på forfatter "Hogstad, Olav"
Hogstad, Olav (Bli med ut!; 2, Research report, 2005)
Hogstad, Olav (Bli med ut!; 6, Research report, 2006)
Survival of Willow tits Poecile montanus: the significance of flock membership, social rank and body size Hogstad, Olav; Slagsvold, Tore (Journal article; Peer reviewed, 2018)The Willow Tit Poecile montanus is highly sedentary and breeding pairs remain in their exclusive areas throughout the year. During the winter, these areas are defended by small, non-kin flocks, formed as the roaming yearlings ...