April, May and first fortnight of June. Without doubt, the best dates for a birdwatching / naturalist trip. The days are longer with agreeable daytime temperatures. In the High Pyrenees, where it may still snow, the highest valleys like Ordesa or Benasque cannot be visited until the second fortnight of May. Flowers and butterflies are abundant in the Pre-Pyrenees. April has many intermittent rains. All our avian summer visitors have already arrived providing excellent ornithological opportunities. An ideal time to watch wetland and seabirds in the Ebro Delta and steppe birds in the blossoming steppes of the Ebro Valley. Scops Owl sings at "Boletas" every night; from here a short morning tour can be arranged to observe Little Bustard and other steppe birds and then Lammergeier or Black Woodpecker in the afternoon.

Second fortnight of June, July. Pleasant temperatures in the early morning and the evening with much heat in the central hours of the day. Rather late now to visit the steppes due to the excessive heat and haze conditions which the steppe birds avoid by concentrating their activity in the early hours. Time suitable for birdwatching is reduced to the first hours of the morning and the last of the evening, moreover many birds have stopped singing, making their location and observation very difficult. If you wish to do walking excursions these are good dates to look for alpine birds (Wallcreeper, Alpine Accentor, Citril Finch, Snow Finch or Alpine Chough) and enjoy the incredible landscapes of spectacular valleys like Ordesa, Bujaruelo or Hecho, where flowers and butterflies are easily located without too much strenuous exercise!

August. Most Spaniards prefer to have their holidays in this month. It's a time when they descend en masse to the most popular valleys such as Añisclo, Ordesa or Benasque as well as those lesser known ones like Hecho or Ansó, though it is generally true that Spanish tourists are rather car-bound tourists and do not like taking long walks very much. As most Spanish people are not very foresighted and tend to make their bookings at the last moment, if you wish to come or cannot choose other dates you will not have any problem finding accommodation if you book in advance. This is a good time to continue with July's activities: searching for alpine birds, flowers or butterflies in the high mountains with difficult access. You must be prepared for the virulent mountain storms that occur in the calcareous systems (Ordesa, Peña Montañesa, Hecho, Riglos or Guara), especially when planning long walking excursions; it's advisable to start them early in the morning as the storms occur in the early afternoon. For us the heat of August is a little too much to carry out our normal activities and as we like to participate in the British Birdwatching Fair at Rutland, Casa "Boletas" stays closed all August.         

In our tours you will enjoy landscapes, birds, flower and butterflies

September, October. In these months the heat of the summer has already passed giving way to more moderate temperatures, some rains around the end of September and in October. These are the best months for those who like to do the most demanding kind of trekking. In the mountains and high valleys of the Pyrenees, most of the emblematic peaks are snow-free and thus excellent walking itineraries can be planned. Most of the trees are shedding their leaves and covering the forest with a carpet of different natural tonalities of greens and browns; a striking scene waiting to be discovered. Alpine birds remain in their breeding territories and in the alpine meadows, at the foot of the high mountains, there is still an abundance of wild flowers as well as butterflies. Southward migration is at its peak so migrant birds can be seen on the alpine walking excursions. Highly recommended for walkers and people whose interests do not lie solely and exclusively with birds. Temperatures are moderate, although the days are shorter and there is usually some rain whilst the first important snowfalls may occur in the mountains.

November. Some alpine birds, mainly Wallcreeper and Alpine Accentor are in Pre-Pyrenees since the second week of October where it is very easy to get good views of them. Lammergeiers start to display, the adults pushing juveniles off from their breeding territories. Although autumn migration is at its end, thousands of Cranes stop off at La Sotonera and Gallocanta, in what never ceases to be an impressive spectacle.