/Willow_Warbler_commons.jpg)
Phylloscopus trochilus
Diet
Insects
Habitat
Forest edge, scrub (vagrant habitat)
Range
Breeds across Europe and Asia, winters mainly in Africa
Clutch size
6–7 eggs (on breeding grounds)
Incubation period
About 13 days
Size
Small (11–12.5cm)
Wingspan
~17–22cm
Weight
~7–10g
A rare/accidental vagrant to Borneo, this widespread Palearctic warbler breeds across Europe and Asia but winters overwhelmingly in Africa, making any Bornean record exceptional.
Plain greenish-yellow above and pale below, it closely resembles other Phylloscopus warblers and would be identified largely by call and voice if encountered.