Category: Natural history


I came across an interesting piece of drama at the river on Saturday. It involved a night heron and some fish.

The heron was standing in water which was only a couple of inches deep, a shallow sill between one sprawling turbulent pool and another. Any fish moving upstream from one pool to the other needed to swim across this shallow ridge in water that barely covered its back and the chosen route was just where the heron was standing. When the bird became aware of my presence it took a few steps further away but resisted the urge to take flight. Presumably the heron, in the moments before I disturbed it, had been waiting for a fish of the right size to run the gauntlet before seizing it. Continue reading →

Remember Indiana Jones? This guy was as tough as nails and he never backed out of a fight even when seriously outgunned. His chin was chiselled out of granite. If you knocked him down he just got back up again, madder than he was before. He was scared of absolutely nothing.

Except snakes. Continue reading →

I have just come back from walking the dogs and we came across snake on the path. The dogs had just trotted on and the snake was making its way from one side of the path to the other. It was a pretty little thing, maybe 40 cm long and when it rested against a wall I had a pretty good look at it. I am pretty sure it was a false smooth snake (Macroprotodon brevis). If this is what it was it is really nothing to worry about. We only have a couple of venomous species around here, the lataste´s viper and the montpelier snake.

My encounter with that little snake brought to mind a closer encounter that Steve Lawler had on Saturday evening. Continue reading →

If you fish from a float tube, and are sitting in chest waders for hour on end, you will be aware that it is a good idea to go for a wee before you set sail. Very often the margins are sheer and rocky and so it becomes impractical to haul up and answer the call of nature. This is particularly true of Concepción where Steven Lawler and I set out on Saturday to do battle with black bass.

Mindful of the hard-won lesson about the need to powder one´s nose before setting out, I trotted off into the long grass this morning just as soon as I had tackled up. Continue reading →

Last Tuesday I came across a red-legged partridge on the way to play squash with Nick Edwards.

I suppose I should point out, for the sake of clarity, that it was me going to play squash with Nick and not the partridge. Having said that, Nick wiped the floor with me, as he does most weeks, and I imagine the partridge would have had about the same success had it decided step in for me.

It is not at all unusual to come across these birds in the kind of open country and scrub that they favour but I was pretty surprised to come across one on the path at the Club del Sol Tennis Club! Continue reading →

It just so happens that my camera is waterproof and pretty much bombproof too. I bought this particular model knowing that any camera I owned was destined to suffer physics abuse of the kind which, doled out on another human being, could well result in a lengthy prison sentence. What´s more it was only a matter of time before I dropped the damn thing in the river. If you are interested in this kind of thing, the model I chose was a Fujifilm finepix XP55 and it has served me very well.

Unfortunately I am so thick that it took me more than at a year to figure that I could use this camera to take underwater pictures of fish. It was only yesterday morning that the penny finally dropped and yesterday afternoon I went to the river looking for subjects to photograph. Continue reading →

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 →