Mongolian hoopoe Upupa epops saturatus Lönnb The Mongolian hoopoe is barely different from the European one. All that can be said when comparing the very large series that we had in our hands is that the birds of most of Mongolia, Transbaikalia, the lower reaches of the Amur and the Ussuri Territory, on average, have a goiter and a breast of slightly purer and thicker pinkish clay. solid coloration, and the front part of the back is darker brownish than in European birds. In addition, a large size, i.e., a wing longer than 15 cm, is found among these birds somewhat more often than among European ones, and sometimes individuals with a wing of 16 cm or even a little more come across, while among individuals of a typical race we have not seen wings longer 15 cm. However, these cases still do not make it possible to base the difference between these races on measurements. This also includes birds from all over China and the eastern Himalayas (Sikkim)