Common Reed Bunting
Emberiza schoeniclus
The common reed bunting is a medium-sized bird, 13.5–15.5 cm (5.3–6.1 in) long and weighing 10–28 g, with a small but powerful seed-eating bill. The male has a black head and throat, white neck collar and underparts, and a heavily barred brown back. The female is much duller, with a streaked brown head, and more barring underneath. The male's song is a repetitive srip.
ID text from Wikipedia, CC BY-SA 4.0

Yellowhammer
Emberiza citrinella
The yellowhammer is a large bunting, 16–16.5 cm (6.3–6.5 in) long, with a 23–29.5 cm (9.1–11.6 in) wingspan; it weighs 20–36.5 g (0.71–1.29 oz). The male of the nominate subspecies E. c. citrinella has a bright yellow head, heavily streaked brown back, rufous rump, yellow under parts, and white outer tail feathers. The female is less brightly coloured, and more streaked on the crown, breast, and flanks. Both sexes are less strongly marked outside the breeding season, when the dark fringes on new feathers obscure the yellow plumage. Voice: The song of the cock yellowhammer is a series of short notes, gradually increasing in volume and followed by one or two more protracted notes. It is often represented as "A little bit of bread and no cheese", and the full version can be confused with the almost identical song of the pine bunting. If the final notes are omitted, confusion with the cirl bunting is possible.
ID text from Wikipedia, CC BY-SA 4.0

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