Birch with Leaves siluetti about 1 year 17 Winter birch tree siluetti about 1 year 0 Tree siluetti about 1 year 9 Birch siluetti about 1 year 1 Tree siluetti about 1 year 1 Tree siluetti about 1 year 18 Apple tree siluetti about 1 year 5 Tree siluetti over 2 years 7 Yellow birch leaf siluetti almost 3 years 43 Black birch leaf siluetti almost 3 years 24 Silver birch leaf siluetti almost 3 years 49 Paper birch leaf siluetti almost 4 years 39 Winter tree siluetti almost 4 years 23 Paljas puu siluetti over 5 years 529 Koivupuu siluetti over 5 years 129 Kumipuu siluetti over 5 years 188 Talvinen puu siluetti over 5 years 187 Koivu siluetti over 5 years 69