The breeding Caspian plover male has a chestnut brown breast band; the breast is grey or greyish-brown in the non-breeding male. The upper photo taken in the Ngorongoro CA (5-10) is courtesy of Siegfried Woldhek. The middle birds were photographed in Maswa GR (1-11), courtesy of Colin Beale and the lower birds, in Yaida Valley (1-05). Click the photo above to see 9 enlargements that include breeding and non-breeding birds.