Abstract
Willow Warbler Phylloscopus trochilus nesting in a juniper during a peak lemming year
Highlights
Willow Warbler Phylloscopus trochilus nesting in a juniper during a peak lemming year Lövsångare Phylloscopus trochilus häckar uppe i en enbuske under ett lämmelår
In 2011, we counted 96 lemming mortalities along a 10 km road transect between Storsjö and Ljungdalen during the same period as the discovery of the above ground nest. In another peak lemming year (1974) researchers in Ammarnäs, Sweden, discovered a willow warbler nest two meters above ground in top of a broken tree (Arheimer & Enemar 1974). In another peak lemming year in central Norway, willow warbler nesting success was higher for individuals with nest off the ground (Hogstad 1985)
Lemmings are not known nest predators, peak lemming years may result in increases of meso-predators such as red squirrels Sciurus vulgaris, weasels Mustela ermine and red foxes Vulpes vulpes known to predate ground nesting birds (Arheimer & Enemar 1974, Hogstad 1985, Forstmeier & Weiss 2004)
Summary
Willow Warbler Phylloscopus trochilus nesting in a juniper during a peak lemming year Lövsångare Phylloscopus trochilus häckar uppe i en enbuske under ett lämmelår We would like to report an unusual nest location for a willow warbler Phylloscopus trochilus. These birds usually build a well concealed ground nest in the vegetation at the base of trees, shrubs, or grass tussocks (Cramp & Brooks 1992).
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call