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Plumages of the Himalayan Impeyan Pheasant (Lophophorus impeyanus).

Plumages of the Himalayan Impeyan Pheasant (Lophophorus impeyanus). (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Plumages of the Black-backed Kaleege (Gennaeus melanonotus).

Plumages of the Black-backed Kaleege (Gennaeus melanonotus). (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Plumages of the Black-throated Golden Pheasant (Chrysopolus pictus, var. obscurus).

Plumages of the Black-throated Golden Pheasant (Chrysopolus pictus, var. obscurus). (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Primaries of Malay and Double-spotted Argus Pheasants and plumages of Bornean Argus Pheasant.

Primaries of Malay and Double-spotted Argus Pheasants and plumages of Bornean Argus Pheasant. (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Evolution of the eyes on a Peacocks train.

Evolution of the eyes on a Peacocks train. (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Evolution of the eyes on the wing-feathers of the Argus Pheasant.

Evolution of the eyes on the wing-feathers of the Argus Pheasant. (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Variations in Golden and Amherst Pheasant hybrids.

Variations in Golden and Amherst Pheasant hybrids. (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Plumages of the Bornean and Siamese Crested Fireback (Lophura ignita and Lophura diardi).

Plumages of the Bornean and Siamese Crested Fireback (Lophura ignita and Lophura diardi). (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Wattles of Cock Tragopans.

Wattles of Cock Tragopans. (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Eggs of Blood Partridges, Tragopans, Impeyans and Eared -Pheasants.

Eggs of Blood Partridges, Tragopans, Impeyans and Eared -Pheasants. (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Tragopan plumages (Tragopan satyra).

Tragopan plumages (Tragopan satyra). (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Plumages of the Grey Junglefowl.

Plumages of the Grey Junglefowl. (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Plumages of the Himalayan Blood Partridge.

Plumages of the Himalayan Blood Partridge. (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Plumages of the Golden Pheasant (Chrysopolus pictus).

Plumages of the Golden Pheasant (Chrysopolus pictus). (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)
Plumages of Reeves’s and Elliot’s Pheasants

Plumages of Reeves’s and Elliot’s Pheasants (1918-1922)

Henrik Gronvold (Danish, 1858 – 1940)