Eurasian tree sparrow
The immune response of Eurasian tree sparrows is less robust than that of the house sparrow and has been proposed as a factor in the greater invasive potential of the latter. The house sparrow and Eurasian tree sparrow are the most frequent victims of roadkill on the roads of Central, Eastern and Southern Europe. The maximum recorded age is 13.1 years, but three years is a typical lifespan.