The beautiful blue tit is tempt by the peanuts in Uppland, Sweden Temptation, Copyright 2015 Torbjörn Swenelius European Blue Tit was first described by Linnaeus in his Systema naturae in 1758 as Parus caeruleus. It is a popular small passerine bird with a beautiful plumage and a valuable destroyer of pests in the gardens. It is a resident bird who sings and calls throughout the year.