Articles in ‘Mammals’

The areas of Barcelona nearest to the Collserola hills are now quite used to visits from the natural park’s thriving boar population, particularly at the end of summer when the ground is rock-hard and food supplies scarce. But on Saturday night a family of boars was seen trotting through Gràcia, a central
barrio of the city, accessible only after crossing an extremely busy ring road. The same family has been observed this August exploring Gaudí’s Güell Park. There’s a
video from TV3 showing the police herding the ungulates through the streets back to the hills. The photo shows a not-so-wild boar of Collserola.
Barcelona, Mammals | Tags: boars in Barcelona, boars of Collserola, boars visit Gracia|
The wind cuts like a knife and few brave the park. Benches stand empty and no one picnics on the grass. And strangely, there’s no sound coming out of the pine and cypress trees. It turns out that the Monk parakeets (Myiopsitta monachus) have come to ground en masse and are foraging on the deserted lawns.

Sometimes you can glimpse a Black rat (Rattus rattus) deep in an ornamental hedge, nibbling on berries. But when the coast was clear, one cautiously ventured into the open, carefully reading the air for information.

Without the lunch time regulars the litter bins offer lean pickings, but this triumphant Red squirrel had managed to procure a large wedge of bread. It zipped up the tree before the magpies noticed.

Even in winter, life flickers in an old stone wall, as lizards (Podarcis hispanica) in a variety of sizes and shades come out to catch the noon rays.

When a frayed Speckled Wood butterfly (Pararge aegeria) settled on one of the last leaves, it seemed to be surfing a wave.
Barcelona, butterflies, Mammals, Palau de Pedralbes park | Tags: Barcelona in the winter, Black rat living in the park, large flock of monk parakeets, Pararge aegeria, red squirrel in Barcelona park, Speckled wood butterfly in December, Wall lizards in the winter|
During the recent years of drought, in parched, dusty Collserola, life was more of a struggle for the boars. Their long muscular snouts found the ground unyielding, and food supplies dwindled. And for an animal that can’t sweat, damp places to cool off were few and far between.
But the continuous rainfall this winter has restored streams that had run dry. The water took a long time to seep through, but finally springs I’ve never seen working have woken up. And for the boars, apart from making their ploughing a lot easier, there are now plenty of muddy puddles to bathe in.
Mud also makes walks in Collserola more interesting. Signs conjure up nocturnal scenes we’re not privy to. We can see where the boars habitually rub their flanks on the rough pine trees after a satisfying wallow.

And two-toed hoof marks proliferate.

In a stream just below a narrow road in Vallvidrera, opposite a row of houses, a boar was satiating its thirst and rooting in the soft mud. Tiny eyes contrasted with large hairy ears and snout – reflecting weak sight but sharp senses of hearing and smell.

It was a typical Collserola periphery boar: used to living alongside people. Hopefully, it wouldn’t venture too far across the boundary. (See previous post for boar problems in Collserola.)
Barcelona, Collserola, Mammals | Tags: boar hoof prints, boar in Vallvidrera, boar mud baths, boars in spain, collserola boars, signs of boars, sus scrofa|
There are two main parts to Pedralbes Park – an ornamental open space, divided by an avenue of lime trees, which leads to a wooded area further back. Bushes of Japanese spindle (Euonymus japonicus) – an oriental evergreen shrub – add symmetry to the triangular lawns. Gardeners find this unfussy and drought-resistant plant very useful, as do robins (Erithacus rubecula), who appreciate its dense cover. In January the berries attract Sardinian warblers (Sylvia melanocephala) at a time when insects are scarce.

It’s not only birds that enjoy the fruit. The Japanese spindle has been trimmed into an extensive hedge, enclosing the lawns. Protracted rustling from within attracted my attention.

Two Black rats (Rattus rattus) were feasting on the orange pulp. They looked clean and wholesome, with their pink paws and pale grey underparts. Their ears are proportionally larger than those of their more urban cousins, the Brown rats, millions of whom are reported to live in Barcelona’s sewers.
Over in the bush near my bench, a robin had appeared in a gap, like a proprietor at the gate, on the lookout for a bit of lunch.

While retrieving a piece of apple, the robin tilted its head skywards, alerting me to the kestrel surveying the park. The parakeets soon drove the predator away.
Barcelona, Birds, Mammals, Palau de Pedralbes park | Tags: Add new tag, birds in Barcelona park, Black rat, Erithacus rubecula, Euonymus japonicus, Japanese spindle, Rattus rattus, robin, Sardinian warbler, sardinian warbler diet, Sylvia melanocephala|
The landscape was overwhelmingly beautiful but unforgiving. After stepping out of the car, my face soon numbed and toes froze. What would we find alive out here?

A steep crag rose out of the snow, facing the sun, gathering warmth. Four sets of binoculars scanned the rocks, and almost immediately we noticed restless flocks of brown-backed birds, briskly foraging among stones and plants, even digging in patches of snow. Up went the telescopes, and you could see orange bills and contrasting black and white tails. Then every so often, a group would sweep off the ridge – a flurry of white birds magnified against the bluest of skies, clearly visible with the naked eye.
The snowfinch (Montifringilla nivalis) is in fact grouped with the sparrows, as suggested by the Spanish name, Gorrion Alpino. Like the urban House sparrow, it’s learnt to take advantage of humans and, since home is above 1500 metres, looks for feeding opportunities at ski stations.
As well as snowfinches we saw Alpine accentors (Prunella collaris) and, very surprisingly, a wallcreeper (Tichodroma muraria), first spotted by sharp-eyed Max. Our eyes were squinting and weeping with the glare, but as Mike said, sunglasses aren’t much use when birdwatching.

All kinds of intriguing tracks patterned the snow, some leading directly towards the snowfinches’ crag. A chamois in a thick winter coat of brown and cream was grazing its way upwards. Already at the top was a fox, surveying the land like a ginger cat.
If we tired of craning up at the rock, we could look the other way towards blue islands – Montserrat, and further away still, Collserola, with the minuscule needle of the Norman Foster tower. The world was in reverse to my normal view from the coast. Sometimes a Griffon vulture would float past or mount a thermal. The snow-muffled silence was broken by the bark of a raven, the powerful light revealing contrasting shades of black on its wings, normally unnoticed. Lower down we’d seen crossbills, just next to the sign indicating the Ruta del Trencapinyes (Route of the Crossbills).
Back down in the valley, in Bagà, trees and rooves were dripping fast in full mid-afternoon thaw and the village cats sunned themselves in a spot freshly cleared of snow. A dipper (Cinclus cinclus) probed the water under the medieval bridge. The crooked shapes of Montserrat filled the horizon as we drove home.

Post script
What does a professional bird guide do when not working? Go bird-watching of course. Stephen Christopher of www.catalanbirdtours.com was intent on photographing the snowfinches, bad weather having thwarted his previous attempt a few days before. The difficult light and restless nature of the birds meant he couldn’t secure a good shot. He did get the following image, however: a Snow bunting (Plectrophenax nivalis), very rarely recorded in Catalunya. Not bad for your day off.
Birds, Mammals, Pyrenees, Trip reports | Tags: alpine accentor, catalan bird tours, chamois, crossbills, dipper, fox, Montifringilla nivalis, Parc Natural del Cadí-Moixeró, Plectrophenax nivalis, Pyrenees birding, snow bunting, Snowfinch, wallcreeper|
I found a palette of colours as autumn turned to winter in Collserola. It’s at this time of year that the variety of trees is most visible: the darker green of holm oak (Quercus ilex), the silvery olives (Olea europaea), the broccoli-green of stone pines (Pinus pinea), and the yellow-brown of deciduous oaks (Quercus cerroides), who are in no hurry to shed their leaves.

The constant rainfall this autumn – not the usual torrential storms, but steady day-long rain – has made moss and lichen flourish. A startling rock by the path is encrusted with orange-yellow lichen on top, and emerald-green moss on the side. The ground is a constellation of moss and earth stars, most of which have already popped. A vivid dark red fungus (a species of Russula) has pushed up through the pine needles, like a mole tunnelling its way out the ground.


A plastic strip tied to a tree guides you up the overgrown terraces, long abandoned. Butcher’s broom grows in the gloom, hung with smooth red balls. A gang of Pekin robins (Leiothrix lutea) express their displeasure at my presence with angry rasping calls. I climb up to the ridge, where spiny Mediterranean gorse (Ulex parviflorus) flowers among the rocks. You can see that Montseny is still powdered with snow, while the Pyrenees are solid icing-sugar white.
Instead of following the ridge back to Vallvidrera, I decide to take the path that skirts the coolest, shadiest corners of the valley. With so few shopping days left before Christmas, it’s very quiet. Probably only a handful of mountain bikers have passed all day. The wings of chaffinches vibrate inside a wild olive. The smallest member of a roving mixed flock, a goldcrest (Regulus regulus), investigates the tip of an oak branch.

The path steepens and it’s almost impossible not to run down . . . straight into a tribe of boars, who scatter through the leaf litter. A male with visible tusks gallops up the slope, where he stands huffing and puffing among the trees, staring belligerently. Poor light and the excitement of the moment has resulted in a less than clear image.

After they finally disperse, I reassure myself that no one in Collserola has ever been attacked by a boar. Their population in the park is estimated at 650 and rising. This season, the hunting clubs of the Collserola region are on strike in retaliation to new restrictions on their activities. Their demands have been partly met: they can continue killing thrushes, for instance. But rabbit shooting is still not permitted in the woods, and the number of days when hunting is allowed in the park has not been increased. So the hunters are envisaging a Collserola so overrun with rampaging boars that the administrative powers will come on bended knee next year and grant them all they desire.
Meanwhile, the boar population is controlled to some extent by forest rangers, who shoot the ones that leave the park limits to explore urban areas. This upsets the residents, some of whom can’t resist feeding the inquisitive beasts and become fond of them. After taming the boars, they have the unpleasant surprise of coming home to a bloodstained street and bodies piled up by their front doors.
Barcelona, Collserola, fungi, Mammals, Trees | Tags: are boars dangerous, boars in Barcelona, earth stars, goldcrest, hunting in Collserola, increase of boar population, Leiothrix lutea, Quercus cerroides, Quercus ilex, Regulus regulus, sus scrofa, trees in Collserola|
The red squirrels (Sciurus vulgaris) of Palau de Pedralbes park stream along the branches unobserved, and build their dreys out of sight in the towering Aleppo pines, somewhere among the parakeet nests.
But sometimes they come to ground, especially in the afternoon when the army of gardeners have gone home and stopped their pruning, spraying and sweeping. Tails undulate in the grass like plumes as squirrels forage. Litter bins are investigated too, though at the moment there are plenty of seeds and nuts to gather.

Red squirrels vary in colour: those in the park tend to be a russet-brown, set off by white breasts, and black tails. At the moment their pelts are particularly lustrous, topped off by lavish ear tufts, their winter adornment.

When two squirrels meet, a helter-skelter pursuit often ensues. They scrabble noisily round and around the tree trunks, loosening a shower of bark debris. Spread eagled on opposite sides of the tree, they await each other’s next move. When one’s nerve breaks, the manic chasing resumes.

This ensures they’ll be fit for next spring, when the females go on heat and lengthy chasing begins in earnest, a prelude to mating. If climate and food supplies permit, which is surely the case in this Barcelona park, the females go on heat twice a year: between January and April, and then again between the end of May and August.
Red squirrels seem weightless as they skim through fragile canopies: the larger males reach a mere 350 grams. Other interesting anatomical features of squirrels include double-jointed ankles and long claws, permitting secure vertical descents. Like all rodents, their chiselled incisors never stop growing – about 15cm in a year. This red squirrel looks set to wear them down a little on a hard green pine cone.
Barcelona, Collserola, Mammals, Palau de Pedralbes park | Tags: Barcelona nature, Barcelona parks, interesting facts about red squirrels, Red squirrel, Sciurus vulgaris, squirrels in spain, where to see red squirrels|
At the road side near Vallvidrera, a cellulose gymnast was swinging through the stems. If you’ve grown up thinking of Stick insects as exotic pets kept in glass containers, it’s a thrill to find them ranging free. They look fragile, but can re-grow a damaged limb after a moult.

Another plant imitator, the Praying mantis (Mantis religiosa), is quite visible in Collserola in October. Like Norma Desmond in Sunset Boulevard, this elegant specimen couldn’t take its eyes away from the camera.

The black spots, which look eerily like pupils, are an effect of light reflecting from the compound eyes. The mantis also has three “simple” eyes between the antennae that act as an auxilliary light metre. With its swivelling neck and stereoscopic vision, there’s not much that goes on unnoticed around a Praying mantis.

From camouflage to aposematism – currently every Wild carrot nest has a Striped shieldbug (Graphosoma lineatum) inside. Experiments have confirmed that the colouring of these bugs helps predators remember their bad taste. As if testing out the theory themselves, they are often in prominent positions on the top of plants.

Its vivid red and black colouring probably saved this Firebug (Pyrrhocoris apterus) in Palau de Pedralbes park. Climbing up the rocks, it stumbled onto a sunbathing Wall lizard. After assessing the situation, it hurriedly changed direction. The lizard watched, but made no move.
Barcelona, Collserola, Insects, Mammals, Palau de Pedralbes park, Reptiles | Tags: aposematism, barcelona insects, camouflage, firebug, graphosoma lineatum, insects in spain, Mantis religiosa, Praying mantis, Pyrrhocoris apterus, stick insect, Striped shieldbug|

It was cold at nearly 2,600m, but there were plenty of grassy hollows and boulders to shelter from the wind. The Port de Ratera was created when ice overflowed from the Ratera basin into the Saboredo. This colossal polishing has created a natural resting place, appreciated by walkers, whether approaching via the scree slopes from the Refugio d’Amitges, or climbing up from Val d’Aran.
The route from the Sant Maurici lake, the GR 11, rises in a series of giant steps, a typical pattern of glacial erosion in hard granitic rock. For the walker this translates as tough slogs interspersed with welcome respites.

On one of these pauses, among still water and scattered rocks, a herd of chamois (Rupicapra pyrenaica) were foraging, a group of females and young. Separated from the rest, one of the adults came bounding past, hooves thudding as it circled the valley.
The renewed silence was broken by a piercing whistle, as if a referee had just stopped play. The first time I ever heard a marmot’s warning call, I was sure it was a bird. One tone warns of raptors and another of danger on the ground. The Pyrenean marmots didn’t survive the last ice age, but were re-introduced in 1948, and have been burrowing there extensively ever since. They are Europe’s largest and perhaps shaggiest rodents, preferring to stay underground on hot days, as well as hibernating throughout winter. This upright marmot was on lookout duty.


Black redstarts were ubiquitous at all levels, from the streets of Espot to the top of the pass. They’re also a familiar sight at sea level, visiting Barcelona in winter. Other birds I saw that day were rock bunting, wheatear and alpine accentor, and a solitary mallard in the Estanyet de Port de Ratera.
Near the pass I found Globe-headed rampion (Phyteuma hemisphaericum), which grows in the highest reaches of the park, up to 3,000m, thriving in thin sandy soils. Starry saxifrage (Saxifraga stellaris) was in flower by a stream.


Another resilient high altitude species is the Mountain pine (Pinus uncinata). One grows near the pass, braced against the prevailing north-west wind. Another, on the south side of Els Encantats at 2,700m, is a candidate for the highest tree of Spain. Bark blending into stone, they are capable of growing out of a fissured rock.
Aiguestortes and Sant Maurici national park, Mammals, Pyrenees, Trip reports | Tags: chamois, National Park of Aigüestortes and Sant Maurici, Phyteuma hemisphaericum, Pinus uncinata, Port de Ratera, Pyrenees flora, Rupicapra pyrenaica, saxifraga stellaris, walking holiday in the Pyrenees, walking in the Pyrenees, walking the GR 11, wildlife in the Pyrenees|
On my second attempt to walk to the Port de Ratera, I took the GR 11, which goes directly there and beyond. It takes you round the Estany (lake) de Ratera, with its marshy grass and hairy Bog cotton (eriophorum angustifolium).

Further up, the path narrows, and you reach the Estany de les Obagues de Ratera (the Lake on the dark side of the Ratera). Red and white poles stop you getting lost, so the map could’ve stayed folded, but once open, a tempting alternative materialised, leading away from the GR 11 up to some tiny lakes. The contrast with the previous day was brutal. The way was marked by cairns, to guide you over an avalanche of rocks. Going became a little easier as the path crept along a narrow strip of grass skirting a vertical wall. There were traces of chamois everywhere. What took me half an hour of awkward balancing they could skip across in 3 minutes. There was no sign of any lakes.

I reached an outcrop of Mountain pines (Pinus uncinata) and sat in their shade, as if for protection. Unsoftened by vegetation or water, this was the harsh side of the mountains. The dead silence was broken by the cawing of a raven. Back at the Estany de Obagues de Ratera, I noticed a round white spot in a crevice: a dipper (Cinclus cinclus). Scouting around the streams I found some late pink and white orchids (see discussion on forum). There were also Field gentians (Gentianella campestris), discrete but welcome flowers at the end of summer. Small details, but very reassuring after the stark wilderness higher up.

This time I kept to the GR 11, but in the other direction. Instead of taking one of the jeep taxis that wait on the hour at the Sant Maurici lake, I walked back to Espot. The path follows the sunny side of the Escrita river, through meadows and tunnels of hazlenut trees. The dark side is covered by a thick mass of uniform fir forest haunted by capercaillies. The setting sun escaped from the clouds, lighting up the valley and the leaf flurries shed by silver birches. Long shadows were cast eastwards towards the mountains of Andorra.
Aiguestortes and Sant Maurici national park, Mammals, Plants, Pyrenees, Reptiles, Trip reports | Tags: Bog cotton, Eriophorum angustifolium, Estany de les les Obagues de Ratera, Estany de Ratera, Field gentians, Gentianella campestris, National Park of Aigüestortes and Sant Maurici, Pyrenees wildlife, walking in the Pyrenees|