Willow warbler – Phylloscopus trochilus

The willow warbler (Phylloscopus trochilus) is common and widespread, breeding throughout northern and temperate Europe and Asia, from Ireland east to eastern Siberia. It is, however, strongly migratory and almost the whole population winters in Sub-Saharan Africa. It is greenish brown above and off-white to yellowish below; the wings are plain greenish-brown with no wingbars and aside from the pale legs looks almost identicaly to the chiffchaff (Phylloscopus collybita). However, if you think you’ve seen a willow warbler but its making a metronomic t’ss, t’ss, t’ss, t’ss… sound and has dark legs it’s a chiffchaff, the warbler has a much more warbling, melodious song (snippet recorded in late April 2017 in Rampton Spinney, South Cambs)