Western Bonelli's Warbler
Phylloscopus bonelli
Western Bonelli's warbler is a small passerine bird, found in forest and woodland. Four to six eggs are laid in a nest on the ground. The eggs are white with reddish-brown markings and are laid in clutches of 3-5 eggs. The incubation period is around 14 days long, and the chicks fledge after 10-14 days. Cuckoo nest predation and brood parasitism are major hazards to the breeding success of western Bonelli's warblers. Like most warblers, western Bonelli's warbler is insectivorous. The adult has a plain grey-green back, green-toned rump and wings and whitish underparts.
ID text from Wikipedia, CC BY-SA 4.0
Yellow-browed Warbler
Phylloscopus inornatus
This is one of the smaller Old World warblers, at 9.5–11 cm long and weighing 4–9 g distinctly smaller than a chiffchaff but slightly larger than Pallas's leaf warbler. Like many other leaf warblers, it has overall greenish upperparts and white underparts. It also has prominent double wing bars formed by yellowish-white tips to the wing covert feathers (a long bar on the greater coverts and a short bar on the median coverts), yellow-margined tertial feathers, and long yellow supercilium. Some individuals also have a faint paler green central crown stripe though many do not show this.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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