Adults. The bird in front is probably an old one. Note the crispy bill. The amount of the typical black subterminal spot on the bill varies in july in 'armenicus' and a full black band could be seen in summer plumage. Compared to 'michahellis', 'armenicus' is bulkier and round-headed. The bird in the very background is a male, due to its flat forehead. The birds in front may be both female.