Linnet
While linnets are monogamous during mating season, they do not mate for life. While breeding pairs are together, the males are highly territorial and will defend the nesting site and the surrounding area.
Portugal
Goldcrest
The goldcrest never starts moving and needs to consume for most of the day to survive. Therefore, in the colder months, it's best that eat 90% a day.
Golden Eagle
Their calls sound like high-pitched screams, but they are quiet most of the time.