Sap-cicles

Our neighbor across the street had a couple of big trees in his yard trimmed last week when we were having seasonal weather (in the 50's). We had a cold snap over the past couple of days, with the temperatures dropping into the 20's overnight and barely making it into the 30's during the day. Apparently the cold caused the sap to be extruded from the cut ends of the branches, which then froze into sapcicles. A very strange sight.