Atlas Pied Flycatcher: variability of identification characters

Deux articles qui traitent l’identification de Gobemouche de l’Atlas (Ficedula speculigera) et les espèces similaires: Gobemouche noir européen (F.h. hypoleuca) et ibérique (F.h. iberiae), Gobemouche à collier (F. albicollis) et les hybrides albicollis x hypoleuca

Two articles dealing with field identification of the Atlas Pied Flycatcher (Ficedula speculigera) and similar species.

The first article is about the variability of plumage and morphology of the Atlas Pied Flycatcher and the overlapping characters with the Iberian Pied Flycatcher (Ficedula h. iberiae) and other similar species: European Pied Flycatcher (Ficedula h. hypoleuca), Collared Flycatcher (Ficedula albicollis) and also hybrids albicollis x hypoleuca.

Corso, A., Janni, O., Viganò, M. & Starnini, L. (2015). Atlas Pied Flycatcher: variability of identification characters. Dutch Birding 37: 141–160.
PDF in ResearchGate.net

A second article about the call identification:

Robb, M. & The Sound Approach (2015). Call identification of European Pied, Iberian Pied and Atlas Pied Flycatcher. Dutch Birding 37: 161–163.

Atlas Pied Flycatchers Ficedula speculigera (Lorenzo Starnini). Images from birds on breeding grounds in Morocco and Tunisia in May

Atlas Pied Flycatchers Ficedula speculigera (Lorenzo Starnini). Images from birds on
breeding grounds in Morocco and Tunisia in May. From figure 1 of Corso et al. Dutch Birding 37: 141–160.

A review of the identification criteria and variability of the Slender-billed Curlew

Corso, A., Jansen, J. & Kókay, Sz., 2014.  A review of the identification criteria and variability of the  Slender-billed Curlew. British Birds 107: 339-370.
PDF in ResearchGate.net

Abstract and a taster (4 pages) of the paper at British Birds‘ website:

This paper presents a complete review of all proposed identification characters for the Slender-billed Curlew Numenius tenuirostris. The review is based primarily on examination of museum specimens, but also on photographs of live birds. All characters were examined from scratch, so the analysis provides a revalidation of some criteria while challenging others. The most useful features for the identification of Slender-billed Curlew were found to be: the colour and pattern of the underside of the outer primaries; pattern and extent of the tibial feathering and length of exposed tibia; leg colour; pattern of the tail feathers; and shape of the dark flank markings. All other proposed features were found to overlap to some extent with some Eurasian Curlews N. arquata.

Since the mid 1990s, when the species was seen on the last-known regular wintering grounds, in Morocco, curlews showing characters associated with Slender-billed Curlew have been reported from several countries, including England, Greece, Hungary, Italy and Spain. These reports have generated considerable and ongoing debate and this paper should provide a key baseline for any future reviews.

Identification of the Slender-billed Curlew (Szabolcs Kókay/ British Birds, 2014)

Identification of the Slender-billed Curlew (Szabolcs Kókay / British Birds, 2014)