Collserola: maquia ignites
There’s a moment in every good firework display when, after a steady build-up, all the remaining ammunition gets simultaneously used up in a single relentless climax, leaving spectators gaping in awe. That’s what’s happening on Collserola’s hill-sides at the moment.
From a distance you can already see the golden broom lighting up the slopes – Thorny (Calicotome spinosa) and Spanish (Spartium junceum). Honeysuckle (Lonicera implexa) weaves into the sky, inflated pink tentacles turning into white flowers. Lavender petals crinkle like crepe paper flames. Rock roses fire off flowers faster than the fragile petals are shed.
All this exuberance has shrunk the paths and you brush your way through, smothered in fragrance and pollen. A Southern white admiral (Limenitis reducta) was resting in the shade. Like a magpie, it looks black and white in flight, but, depending on the light, can suddenly turn deep blue.
Painted Ladies streamed up the hill, as well as Marsh Fritillaries (Euphydryas aurinia), whose markings seem drawn by hand.
All this splendour has a soundtrack of nightingales, singing their extensive repertoire. They stay undercover but don’t object if you stand near by and listen.
Collserola: guided walks
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 
