Some already existing snake pictures as puzzles – all the snakes except the one titled with Zamenis longissimus – from one hole in the other you will see in the two parted video
https://www.jigsawplanet.com/?rc=play&pid=032fce88e2c8
https://www.jigsawplanet.com/?rc=play&pid=08b4720c3e0b
https://www.jigsawplanet.com/?rc=play&pid=2828426b71dd
https://www.jigsawplanet.com/?rc=play&pid=2fe10034862b
https://www.jigsawplanet.com/?rc=play&pid=206b08f42bc3
https://www.jigsawplanet.com/?rc=play&pid=307003683633
https://www.jigsawplanet.com/?rc=play&pid=30b8887969cf
https://www.jigsawplanet.com/?rc=play&pid=383393ddcf6c
https://www.jigsawplanet.com/?rc=play&pid=3f32a964dc7b
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Non venomous snakes:
Coronella Austriaca (Austriaca) – endangered (3), protected - 60-75 cm, occassionally 80 cm and above
Natrix Natrix (Natrix) - endangered (3), protected – length: Males: 60-70 cm, Females: 80-100 cm, occassionally up to 140cm
Natrix Natrix (Helvetica) – endangered (3), protected – length: 160 cm, females: occassionally: 180-200 cm
Natrix Tessellata (Tessellata) – heavily endangered (2), protected – length: 60-90 cm occassionally up to 150 cm
Zamenis Longissimus – endangered (3) and seemingly are on recovery from critically endangered, protected - length: 140-160 cm, big ones up to 180 cm occassionally 2 meters and longer
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Venomous snakes:
Vipera Berus – endangered (3), protected – length: 50-60 cm – rarely 80 cm and above
Vipera Ammodytes – heavily endangered (2), protected – length: 60 -80 cm, males sometimes up to 110 cm
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Legless lizard:
Anguis Fragilis - near threatened (not listed yet), protected – length: 40-45 cm