Salamanders, (salamandra salamandra), will also release their egg sacs or young larvae into the water any time from Autumn 'til Spring if it's mild and my pond currently has larvae in various stages of development with adult females at the waters edge last night.
Click on photos to enlarge.
Also to be seen in the water last night were a few Palmate newts, (Triturus,(Lissotriton), helveticus), perhaps a little early in the season but unlikely to be a problem for them.
Also I saw this little frog, either Edible frog, (Pelophylax kl. esculentus), or Pool frog, (Pelophylax lessonae), no more than 3 to 4cm making its way to the pond, again very early but it would soon find somewhere to hide away should the weather turn very cold.
Plenty to come on Amphibians in the near future.
Chris