The date of the long-term ornithological investigations in Kivach reserve (Karelia) is presented. The information on number and some features of ecology of 55 threatened bird species is given. Most of them have not declined in number during last 20–40 years. White-Tailed Eagle Haliaeetus albicilla, Oystercatcher Haematopus ostralegus, Terek Sandpiper Xenus cinereus and, probably Bittern Botaurus stellaris started to breed in Kivach. Wooper Swan Cygnus nygnus and Smew began to nest here after a long interruption. The number of Kestrels Cerchneus tinnunculus and Redstsrts Phoenicurus phoenicurus began to recover after a steep depression. Barnacle Branta leucopsis and Canada Geese Branta canadensis have appeared on migrations. But Golden Eagle Aquila chrysaetus, Merlin Aesalon columbarius, Woodlark Lullula arborea have not been recorded in Kivach for 20 years; Grey Partridge Perdix perdix, Slavonian Grebe Podiceps auritus, Red-Footed Falcon Erythropus vespertinus, Bar-Tailed Godwit Limosa lapponica, Azure Tit Parus cyanus – more than 40 years, and number of Black-Throated Divers Gavia arctica has slightly declined during last decades.