| Titre : | British Birds Primary spacing as a field identification criterion for Iberian Chiffchaff (2017) |
| Auteurs : | Marcel Gil-Velasco, Auteur |
| Type de document : | Article |
| Dans : | British Birds (110(8) August 2017) |
| Article en page(s) : | 476-480 |
| Langues: | Anglais |
| Résumé : | Differences in the primary spacing between Iberian Chiffchaff Phylloscopus ibericus and Common Chiffchaff P. collybita are described, based on measurements from good-quality photographs of birds on the breeding grounds. In some situations, this may be a useful supplementary feature for field identification. |
| En ligne : | https://britishbirds.co.uk/article/primary-spacing-field-identification-criterion-iberian-chiffchaff/ |



