Some fascinating scientific papers on house sparrows and willow tits released this week:

 

A high incidence of non-cavity nesting in an introduced population of House Sparrows suggests that the species should not be constrained by cavity-nest site availability

Elizabeth Louise Sheldon and Simon Charles Griffith

Avian Research 2017 8.29

https://doi.org/10.1186/s40657-017-0087-0  

Conclusions of this study found that the house sparrow may be unlikely to be constrained by cavity-nest sites and it is likely that they have a more wide ranging nesting habit than previously concluded.

 

House sparrows on vegetation


Habitat quality affects stress responses and survival in a bird wintering under extremely low ambient temperatures

Cīrule, D., Krama, T., Krams, R. et al.

Sci Nat (2017) 104: 99.

https://doi.org/10.1007/s00114-017-1519-8

Conclusions of this study showed willow tits’ survival was higher in old forests and that young managed coniferous forests were suboptimal habitat for the willow tit.

 

SBS Willow Tit

 

 


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