Study

Food supply in early spring and stability of pair bonds in the varied tit Parus varius

  • Published source details Nakamura M. & Kubota H. (1998) Food supply in early spring and stability of pair bonds in the varied tit Parus varius. Journal of Avian Biology (formerly Ornis Scandinavica 1970-1993), 29, 201-205.

Actions

This study is summarised as evidence for the following.

Action Category

Provide supplementary food for songbirds to increase adult survival

Action Link
Bird Conservation
  1. Provide supplementary food for songbirds to increase adult survival

    A small controlled before-and-after trial in two mixed woodlands on Honshu, Japan in the spring of 1996 (Nakamura & Kubota 1998) found that survival of varied tits Parus varius was significantly higher at a 67 ha site supplied with supplementary food, compared to a 46 ha control (unfed) site 3 km away (100% survival over the 51 day study period for 17 tits in the fed area vs. 70% survival for 20 tits from the control area). Many birds changed breeding partners in the control site, whereas pair bonds were maintained in the fed site. Food consisted of 500 g sunflower seeds provided two or three times a week from seven feeders, each at least 150 m from each other. Feeders were visited on average 30 times/hr by three individuals.

     

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