How many berries?
November 12th 2016
Given the huge influx of winter thrushes this year I wondered just how many rowan berries might be available to them.
One of the smaller rowan trees in my garden, which will be 50+ years old, measures 7m tall, 5m across and has a trunk 25cm in diameter. On 10th November 2016 I counted 800+ clumps of berries on this tree and a sample of 5 clumps yielded 280 berries weighing 97gm. In round figures then the total crop of berries on that tree could be 44800, weighing around 16kg!
All measurements, other than the count and weight of the sample, are approximations, but that is still a lot of food for fieldfares and redwings, given the large number of rowans in Assynt (think of a number!).
Ian M. Evans
Single bird flying overhead, Culkein Drumbeg (Carol Langford)
550+ birds flying over Ardvar garden (Beccy Garvey)
11 birds flying over Ardvar (Beccy Garvey)
Single animal swimming close into Clachtoll beach (AS) (23/09)
20+ flying over and calling, Nedd (Ian Evans), 800+ flying over and calling throughout the day, Culkein Drumbeg (DAH)
10 birds feeding in Loch Ardbhair (Beccy Garvey)
c40 birds over Culkein Drumbeg (Jim and Corinne France, DAH) (21/09)
Single bird, Culkein Drumbeg (Jim and Corinne France) (21/09)