1,353 Free Artworks of Gerrard

john gerrard keulemansmonograph of the nectariniidaebiologia centrali-americana - ornithologya monograph of the meropidaea history of the birds of ceylonargentine ornithologya history of the birds of new zealand by bullerthe indian ducks and their alliespollen & van dam - recherches sur la faune de madagascar - birdspieter willem marinus trap
CygnusNigricollisKeulemans, John Gerrard Keulemans, 1889
cygnus melancoryphus (illustrations)argentine ornithology
ButeoSwainsoniKeulemans, John Gerrard Keulemans, 1889
buteo swainsoni (illustrations)argentine ornithology
HydropsalisFurciferaKeulemans, John Gerrard Keulemans, 1889
argentine ornithologyhydropsalis torquata
Stagonopleura guttata 1873, John Gerrard Keulemans
onze vogels in huis en tuin - vol. 2 second setstagonopleura guttata
History of the birds of NZ 1st ed p102-2, John Gerrard Keulemans, 1873
mohoua albicilla (illustrations)corvoidea illustrations
SturnusAlbofrontatusLegge, John Gerrard Keulemans, 1880
a history of the birds of ceylonsturnornis albofrontatus
BrachypternusPuncticollisLegge, John Gerrard Keulemans, 1878
dinopium benghalense (illustrations)a history of the birds of ceylon
Cinnyris osea Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecinnyris osea (illustrations)
Anthreptes chlorigastra - celebensis Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaenectariniidae illustrations
Leptocoma brasiliana Keulemans, John Gerrard Keulemans, 1880
leptocoma brasiliana (illustrations)monograph of the nectariniidae
Geokichla spiloptera Legge, John Gerrard Keulemans, 1878
a history of the birds of ceylongeokichla spiloptera
Zosterops chloronothos 1868, John Gerrard Keulemans, published 1868
zosteropidae illustrationszosterops chloronothos
Alectroenas sganzini 1868, John Gerrard Keulemans, published 1868
columbidae illustrationsalectroenas sganzini
Dicrurus waldenii 1868, John Gerrard Keulemans, published 1868
dicruridae illustrationsdicrurus waldenii
Cinnyris jugularis flamaxillaris Keulemans, John Gerrard Keulemans, 1880
cinnyris jugularis (illustrations)monograph of the nectariniidae
Cinnyris jugularis andamanicus Keulemans, John Gerrard Keulemans, 1880
cinnyris jugularis (illustrations)monograph of the nectariniidae
Lophophanes cristatus 1869, John Gerrard Keulemans
onze vogels in huis en tuin - vol. 1 second setlophophanes cristatus (illustrations)
Cuculus canorus 1873, John Gerrard Keulemans
onze vogels in huis en tuin - vol. 2 second setcuculus canorus (illustrations)
MergusSerratorKeulemans, John Gerrard Keulemans, 1908
the indian ducks and their alliesmergus serrator (illustrations)
Leptocoma calcostetha Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaeleptocoma calcostetha
Aethopyga bella Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaeaethopyga bella
ErismaturaKeulemans, John Gerrard Keulemans, 1908
oxyura leucocephala (illustrations)the indian ducks and their allies
AythyaBaeriKeulemans, John Gerrard Keulemans, 1908
the indian ducks and their alliesaythya baeri (illustrations)
AnasFalcataKeulemans, John Gerrard Keulemans, 1908
the indian ducks and their alliesmareca falcata (illustrations)
CallistePyrangaKeulemans, John Gerrard Keulemans, 1904
biologia centrali-americana - ornithologyjohn gerrard keulemans
Cinnyris chloropygius Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecinnyris chloropygius
Cinnyris bifasciatus Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecinnyris bifasciatus
Cinnyris bouvieri Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecinnyris bouvieri
BuarremonKeulemans, John Gerrard Keulemans, 1904
biologia centrali-americana - ornithologyjohn gerrard keulemans
GallusLafayettiiLegge, John Gerrard Keulemans, 1880
gallus lafayettii (illustrations)a history of the birds of ceylon
Aethopyga shelleyi Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaeaethopyga shelleyi
Cinnyris superbus Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecinnyris superbus
Arachnothera chrysogenys Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaearachnothera chrysogenys
Arachnothera dilutior Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaearachnothera dilutior
Cinnyris coccinigaster Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecinnyris coccinigastrus
CaprimulgusSalviniKeulemans, John Gerrard Keulemans, 1904
biologia centrali-americana - ornithologyantrostomus salvini
Cinnyris notatus Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecinnyris notatus
Melittophagus muelleri Keulemans, John Gerrard Keulemans, 1886
a monograph of the meropidaemerops muelleri
Anabathmis hartlaubii Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaeanabathmis hartlaubii
Aethopyga duyvenbodei Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaeaethopyga duyvenbodei
Cinnyris cupreus Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecinnyris cupreus
Promerops cafer Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaepromerops cafer
Cyanomitra cyanolaema Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecyanomitra cyanolaema
Cinnyris chalybeus Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecinnyris chalybeus
Anthreptes longuemarei Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaeanthreptes longuemarei
A History of the Birds of New Zealand - Mohoua albicilla, Mohoua ochrocephala, John Gerrard Keulemans, 1873
mohoua albicilla (illustrations)corvoidea illustrations
History of the birds of NZ 1st ed p176, John Gerrard Keulemans, 1873
gallirallus philippensis (illustrations)gallirallus dieffenbachii
MolothrusKeulemans, John Gerrard Keulemans, 1889
agelaioides badius illustrationsargentine ornithology
HirundoHyperythraLegge, John Gerrard Keulemans, 1880
a history of the birds of ceylonlonchura kelaarti
Cacatua galerita triton 1869, John Gerrard Keulemans
onze vogels in huis en tuin - vol. 1 second setcacatua galerita (illustrations)
Biologia Centrali-Americana Myiodynastes Contopus, John Gerrard Keulemans, 1902
myiodynastes hemichrysuscontopus ochraceus
Aethopyga eximia Keulemans, John Gerrard Keulemans, 1880
aethopyga eximia (illustrations)monograph of the nectariniidae
Strix fulvescens 1902, John Gerrard Keulemans
biologia centrali-americana - ornithologystrix fulvescens
Thamnistes anabatinus 1902, John Gerrard Keulemans
thamnophilidae illustrationsthamnistes anabatinus
Synallaxis brachyura 1902, John Gerrard Keulemans
biologia centrali-americana - ornithologysynallaxis brachyura
Margarornis rubiginosus 1902, John Gerrard Keulemans
biologia centrali-americana - ornithologymargarornis rubiginosus
Premnoplex brunnescens 1902, John Gerrard Keulemans
biologia centrali-americana - ornithologypremnoplex brunnescens
Vireo pallens 1902, John Gerrard Keulemans
vireo illustrationsvireo pallens
Vireo brevipennis 1902, John Gerrard Keulemans
biologia centrali-americana - ornithologyvireo brevipennis
Nothocercus bonapartei 1902, John Gerrard Keulemans
biologia centrali-americana - ornithologynothocercus bonapartei
Aethopyga shelleyi- Eudrepanis dubia Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaeaethopyga shelleyi
Cantorchilus semibadius 1902, John Gerrard Keulemans
troglodytidae illustrationscantorchilus semibadius
Deltarhynchus flammulatus 1902, John Gerrard Keulemans
deltarhynchus flammulatustyrannidae illustrations
Pheugopedius felix 1902, John Gerrard Keulemans
biologia centrali-americana - ornithologypheugopedius felix
Melanoptila glabrirostris 1902, John Gerrard Keulemans
melanoptila glabrirostrismimidae illustrations
Keulemans Onze vogels 3 11, John Gerrard Keulemans, 1876
onze vogels in huis en tuin - vol. 3lanius senator (illustrations)
History of the birds of NZ 1st ed p114, John Gerrard Keulemans, 1873
xenicus gilviventrisxenicus longipes
Hypogramma hypogrammicum Keulemans, John Gerrard Keulemans, 1880
kurochkinegramma hypogrammicum (illustrations)monograph of the nectariniidae
Melittophagus pusillus Keulemans, John Gerrard Keulemans, 1886
merops pusillus (illustrations)a monograph of the meropidae
Melittophagus boleslavskii Keulemans, John Gerrard Keulemans, 1886
merops bulocki (illustrations)a monograph of the meropidae
Merops bicolor Keulemans, John Gerrard Keulemans, 1886
merops viridis (illustrations)a monograph of the meropidae
Nectarinia olivacea Keulemans, John Gerrard Keulemans, 1880
cyanomitra olivacea (illustrations)monograph of the nectariniidae
Nectarinia lotenia Keulemans, John Gerrard Keulemans, 1880
cinnyris lotenius (illustrations)monograph of the nectariniidae
Nyctyornis athertoni Keulemans, John Gerrard Keulemans, 1886
nyctyornis athertoni (illustrations)a monograph of the meropidae
Hedydipna collaris Keulemans, John Gerrard Keulemans, 1880
hedydipna collaris (illustrations)monograph of the nectariniidae
Leptocoma minima Keulemans, John Gerrard Keulemans, 1880
leptocoma minima (illustrations)monograph of the nectariniidae
Merops viridis Keulemans, John Gerrard Keulemans, 1886
merops orientalis (illustrations)a monograph of the meropidae
Merops philippinus Keulemans, John Gerrard Keulemans, 1886
merops philippinus (illustrations)a monograph of the meropidae
Merops apiaster Keulemans, John Gerrard Keulemans, 1886
merops apiaster (illustrations)a monograph of the meropidae
Merops ornatus Keulemans, John Gerrard Keulemans, 1886
merops ornatus (illustrations)a monograph of the meropidae
Merops persicus Keulemans, John Gerrard Keulemans, 1886
merops persicus (illustrations)a monograph of the meropidae
Merops sumatranus Keulemans, John Gerrard Keulemans, 1886
merops viridis (illustrations)a monograph of the meropidae
Aethopyga siparaja Keulemans, John Gerrard Keulemans, 1880
aethopyga siparaja (illustrations)monograph of the nectariniidae
Aethopyga saturata Keulemans, John Gerrard Keulemans, 1880
aethopyga saturata (illustrations)monograph of the nectariniidae
Aethopyga nicobarica Keulemans, John Gerrard Keulemans, 1880
aethopyga siparaja (illustrations)monograph of the nectariniidae
Aethopyga ignicauda Keulemans, John Gerrard Keulemans, 1880
aethopyga ignicauda (illustrations)monograph of the nectariniidae
Aethopyga vigorsi Keulemans, John Gerrard Keulemans, 1880
aethopyga vigorsii (illustrations)monograph of the nectariniidae
Anthreptes rectirostris Keulemans, John Gerrard Keulemans, 1880
anthreptes rectirostris (illustrations)monograph of the nectariniidae
Anthobaphes violacea Keulemans, John Gerrard Keulemans, 1880
anthobaphes violacea (illustrations)monograph of the nectariniidae
Chalcomitra senegalensis Keulemans, John Gerrard Keulemans, 1880
chalcomitra senegalensis (illustrations)monograph of the nectariniidae
Chalcoparia singalensis Keulemans, John Gerrard Keulemans, 1880
chalcoparia singalensis (illustrations)monograph of the nectariniidae
Cinnyris talatala Keulemans, John Gerrard Keulemans, 1880
cinnyris talatala (illustrations)monograph of the nectariniidae
Cinnyris souimanga Keulemans, John Gerrard Keulemans, 1880
cinnyris sovimanga (illustrations)monograph of the nectariniidae
Cinnyris jugularis Keulemans, John Gerrard Keulemans, 1880
cinnyris jugularis (illustrations)monograph of the nectariniidae
Cinnyris afer Keulemans, John Gerrard Keulemans, 1880
monograph of the nectariniidaecinnyris afer (illustrations)
Cinnyris asiaticus Keulemans, John Gerrard Keulemans, 1880
cinnyris asiaticus (illustrations)monograph of the nectariniidae
Cinnyris fuscus Keulemans, John Gerrard Keulemans, 1880
cinnyris fuscus (illustrations)monograph of the nectariniidae
Cinnyris pulchellus Keulemans, John Gerrard Keulemans, 1880
cinnyris pulchellus (illustrations)monograph of the nectariniidae
Cyanomitra verticalis Keulemans, John Gerrard Keulemans, 1880
cyanomitra verticalis (illustrations)monograph of the nectariniidae
Arachnothera longirostra Keulemans, John Gerrard Keulemans, 1880
arachnothera longirostra (illustrations)monograph of the nectariniidae
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