Hello Nabi and welcome,
I have to tell you how blessed I was to see (and attempt to read!) your french blog. I especially appreciated your link to "The Outdoor Hour - Nature Study Close to Home". We live in your typical concrete laden suburb and to be honest, our weekly nature studies in our neighborhood have been uninspiring. But looking at The Outdoor Hour has given me a new excitement to begin exploring in our backyard! The author gives such practical and "do-able" weekly studies, and I love how she breaks things into 15 minute studies. Thank you so much!