Scientific Illustration portfolio by Marcos Oliveira - Nature, History, Archaeology and Ethnology
9.1.13
Serinus serinus
(Serin)
India ink
and ecoline , 2000
Troglodytes troglodytes
(Wren)
India ink and ecoline, 2000
4.1.13
Douro internacional,
ecoline.
Grupo do Risco 2008
28.12.12
Cigaduenha
Douro internacional,
ecoline,
Grupo do Risco
field sketshing
Douro, Portugal
Grupo do Risco
26.12.12
Falco columbarius (Merlin, male),
watercolor 2006
25.12.12
Aquila adalberti,
watercolor, 2007.
11.12.12
Plegadis falcinellus
(Glossy Ibis in winter)
watercolor, 2012.
9.12.12
Columba palumbus
(Woodpigeon),
watercolor, 2006.
Parus ater (Coal Tit),
watercolor
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