For me, the development of the challenges during the corona-lockdown has been very stimulating and I learned a lot, not only from what I had to read, with pleasure, to elaborate the challenges, but also from the knowledge, opinions and views of those who participated. The “Ornithologic Questionnaire” in the WhatsApp phase had its limitations, and it came to an end with the “35th challenge”.

With this blog I want to rescue the work done, give it some continuity, and make it more extensive than it was through the primitive WhatsApp-group. Within this rescue, I will start by repeating the challenges posted in the WhatsApp phase, while the answers, the “solutions to the challenges”, will be here more elaborate than in the WhatsApp messages. In some way, this is an invitation to the birding community to do an immersion in the bird’s world.

The dynamics of this questionnaire will be to pose a biweekly challenge to those who want to answer it. As a rule, this challenge will be presented on Wednesday. Responses / comments will be collected in a section that will be not always visible to participants. I will present my “solution” and comments the next Wednesday, and I will present a new challenge next Wednesday. So, challenges and answers will be presented alternatively every Wednesday. I hope you will have fun!

In the answers, I will present not only my comments, but also the bibliography on which I based them. I want to encourage readers to turn to this bibliography to expand their knowledge. Sometimes I will present an illustration from the bibliography consulted. If it is not available in Open Access I will present it with a watermark, which will refer the reader to the consultation of the original work, respecting copyright.

This blog not only has an ornithological function. It also wants to have a cultural function, for the promotion and dissemination of ornithology in Catalan. To this end, it has been sent to the mailing lists of the ornithological societies of the Catalan cultural area, but also to other ornithological societies of the Spanish State. Obviously, it is open to everyone.