The Red Book series comprises the following 10 lei silver coins (over to July 2021):

- wildcat and green woodpecker in 2001,

- black stork and European mink in 2003,

- pine marten in 2004,

- imperial eagle in 2005,

- great bustard in 2006,

- European ground squirrel in 2007 and

- white waterlily in 2008.

The series also comprises the following 50 lei coins:

- Eurasian spoonbill in 2011,

- otter and lady's slipper in 2012,

- mute swan and Coenagrion mercuriale damselfly in 2013,

- glossy ibis and the peony Paeonia peregrina in 2014,

- European pond turtle in 2015,

- red-breasted goose in 2016

- maiden pink - Dianthus deltoides in 2018,

- saker falcon - Falco cherrug in 2018,

- summer snowflake - Leucojum aestivum in 2019 and

- Papilio machaon swallowtail in 2020.

About the eastern imperial eagle

The eastern imperial eagle has a wingspread of two meters and a body of 80 centimeters in length. The bird nests in trees and hunts rodents and birds. It is a species rarely seen in Romania.