I have had the pleasant surprise to see like one of the best ornithological Webs of Europe, Ornithomedia, has incorporated in the last article of the magazine dedicated to the identification of the Iberian Chiffchaff, a reference an article of my blog.
Distribution et identification du Pouillot ibérique
As a result of the publication of a note, “Distribution and identification of Iberian Chiffchaff” by Jose Luis Copete published in July 2008 for British Birds, Ornithomedia, makes a french version and in the section on the song they incorporate the simple article that I published in April of 2006, The song of Chiffchaff
The differentiation of the Iberian Chiffchaff and Common Chiffchaff is really very slight, but appreciable in good conditions of observation and clear by means of the song too.
In the article of Jose Luis Copete different aspects from the identification in hand are indicated, also is made a brief analysis of the propose subspecies for the Iberian Chiffchaff.