A walk on the edge: spring
Written by Lucy Brzoska
On the outskirts of Aiguafreda, the Cingles de Bertí loom up rather dauntingly, but the climb isn’t as bad as it looks, especially if you begin early in the day. At the side of the track was a Dappled White, keeping perfectly still. Its green underwing markings are like the mottled pattern of lichen on a rock.
There’s a short cut near the top cutting through dark damp woods where shadows are purple with liverwort. Then abruptly you emerge, like a prisoner out of an escape tunnel, and look wonderingly over the top of the precipice at the flat table land.
Spring comes at full tilt with a range of sounds not heard since the previous year. A cuckoo starts up from the valley below. I can hear a flock of bee eaters somewhere over the fields. A nightingale sings, still rather tentatively, from deep inside the evergreen oaks. Then a Tawny owl starts hooting in the bright morning, disconcertingly, like a clock striking thirteen.
The autumnal migration of cranes (Grus grus) into Spain usually takes place inland, over the Pyrenees. On the last weekend of October there was an abrupt change in the weather, with temperatures plummeting and an extremely strong north wind. On 
It’s the time of year for unusual sightings in unexpected places. Recent observations recorded on 
Shortly after being born, this year’s brood of Peregrine falcon chicks were stolen from their nest in one of the Sagrada Familia towers. The robbery took place out of range of the web cam installed. Visitors have no access to this tower, but there are always plenty of workers milling around, since the Sagrada Familia is still under construction. Eduard Durany, responsible for monitoring Barcelona’s Peregrine falcons, emphasises the need for better security. Last year suspicious individuals were spotted trying to take food up to the falcons, who fetch a high price on the black market. After the theft, two chicks born in a wildlife recuperation centre were placed in the nest, but sadly the intended foster parents rejected them. See also the report on the ringing of 
After considerable procrastination, 
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 
