Category: Natural history


A few days ago I was out walking the dog when we came across a bunch of caterpillars crossing the road. These were processionary caterpillars and are a familiar sight in this part of the world particularly at this time of the year. They walk in a line one after another, a habit that gives them their common name. They produce a trail of pheromones but it is the hairs at the rear of the caterpillar in front provide the main stimulus for the caterpillar following behind. Even though I have seen this behavior many times I had never stopped to consider WHY they should be marching in a procession like this away from the pine trees on which they grow over the winter.

So why DID the caterpillars cross the road? Continue reading

Rain

For the last few days it has been raining pretty hard. The track outside is muddy and rutted and a trip to the river this weekend seems a little pointless as far as fishing is concerned but I may be tempted anyway if only to see the swollen river.

This is the rain we have been waiting for. It is not the first of the autumn and the rivers are not low but this sustained rain will bolster flow in the Río Verde which feeds Concepción and it will raise the levels of the other major reservoirs. Continue reading

I have just returned from a trip to the national park at Doñana where I spent a couple of days with some of our senior Biology students, my colleague Dr Jan Walker, and local guides who know the place like the backs of their hands. And even though I am several hours drive away my head is still full of the sights and sounds of that extraordinary place.

Every day I have been there I have seen and learned new things but today was really extraordinary because I was able to see, for the first time, one of Doñana´s iconic animals – the Spanish imperial eagle. Continue reading

About three weeks ago I wandered off to the river for the last couple of hours of daylight. I was hoping there might be a fish or two around and there were. I managed to catch a small barbel and saw a few carp nosing around in the margins but, in the failing light, I was struggling to present a nymph without spooking them, and they were able to continue eating their dinner untroubled by me.

But what was memorable about that evening was, not the fish but the sight of three wild boar on the riverbank. I suspected that they were around.  I had seen the deep imprints of their feet in the mud and heard noisy crashing among dense banks of canes but I was not expecting to have a chance to see them in the open during daylight. Continue reading

I have never seen Concepción reservoir so empty and was amazed to see, on my arrival, the exposed sediment of its floor. I suppose I ought not to have been surprised. The low levels were reported in an article published this week in the local press and which featured photos of ghost buildings which had emerged after years of immersion.

It seems that recent rains have done little to reverse the loss of water and the Río Verde which feeds the reservoir has cut a long channel through her floor and now empties its turbid water the best part of two kilometers from the position of its “old” estuary when the reservoir is full. Continue reading

Every so often we come across a rather enigmatic bird here in Spain called the red-necked nightjar. You are unlikely to see one of these things outside of the Iberian Peninsula but it breeds throughout Spain and Portugal and is the largest nightjar we have in Europe. These are real stunners and I have grown more fascinated by them as the years have gone by.

My dog Bonita is now pretty lame and is not up to her once-daily walk through the campo but she and I have, over the years, seen plenty of these nightjars just as the light is fading in the evening. Even on the edge of darkness, when they are actively searching out insects, their hawk-like silhouette makes them easy to identify. Continue reading

A couple of summers ago, before I began to write this blog, I joined a group of bird watchers on a trip into the Straits of Gibraltar in order to see what we might find by way of birds and cetaceans. We left Tarifa by yacht and spent some time in the straits, crossing to within spitting distance of the Morroccan coast. It was during the homeward leg of this trip that I was lucky enough to see a whale spout and when we approached, we chanced upon a sperm whale at the surface and had the rare privilege of taking a close look at it before it sounded and returned to the cold depths where it spends most of its life. Continue reading

I tend to use the car radio as a predictor of the quality of the fishing. If Kiss FM comes up with a string of decent tunes I feel confident that the fish will be biting and things are going to pan out just fine.

Today I slapped on the radio and out came Material Girl by Madonna. I should have just done a U turn there and then.

“Some boys kiss me, some boys hug me
I think they’re O.K.
If they don’t give me proper credit
I just walk away”

For Christ´s sake, what a load of crap! Continue reading

I am always hankering after a bit of fishing but extricating myself from domestic commitments is rarely straightforward. So it came as a pleasant surprise when Catriona more or less told me to go to the river yesterday evening. She and Leo had settled down to watch The Hobbit and realised that, having little interest in a watching a film I was likely to get bored and annoy them and so the best thing might be just to get rid of me. Fair enough! And this morning I just got up early, gave the dogs some breakfast and headed back to the river again.

One of the benefits of being on the river at the start or end of the day, apart from not being fried at this time of the year, is that there is always a chance of bumping into something interesting. This morning I came across two young foxes playing with one another just like a couple of puppies. I had been stalking carp in a shallow pool and the foxes just bounded down the opposite bank and played around for several minutes before one of them spotted me and they both vanished. Continue reading

It sometimes appears that the world conspires to keep the simple pleasures of life at bay, or at least that is the way things were beginning to appear to me. Sunday was the first time in three weeks or so that I had a chance to get out to the river to see if I could trick a few fish into ingesting one of the simple little nymphs I tie up at home. Continue reading