A week ago today Steven Lawler and I witnessed some remarkable behaviour on the Guadalhorce – the gypsy barbel were leaping up a weir and falling back into the river. They looked for all the world like salmon.
We noticed that they never cleared the wall, despite coming pretty close at times. Steve took a close look at them and suggested that they were not trying to clear this obstacle, as we had first thought, but were feeding in the silkweed on the weir itself. Continue reading

