My pick is the Dalmation Pelican because its big and it avoid any sort of race war over the color of the pelican.

Brown Pelican
Pelecanus occidentalis
Linnaeus, 1766
Brown Pelican
Length up to 1.4 m (4.6 ft), wingspan 2–2.3 m (6.6–7.5 ft), weight 3.6–4.5 kg (7.9–9.9 lb).[21] Smallest pelican; distinguished by brown plumage; feeds by plunge-diving.[22] Five subspecies. Coastal distribution ranging from North America and the Caribbean to northern South America and the Galapagos.[23] Status: Least Concern.[24]

Peruvian Pelican
Pelecanus thagus
Molina, 1782
Peruvian Pelican
Length up to 1.52 m (5.0 ft), wingspan 2.48 m (8.1 ft),[25] average weight 7 kg (15 lb).[26] Dark with a white stripe from the crown down the sides of the neck. Monotypic. Pacific Coast of South America from Ecuador and Peru south through to southern Chile.[23] Status: Near Threatened.[27]
Spot-billed Pelican
Pelecanus philippensis
Gmelin, 1789

Spot-billed Pelican
Length 1.27–1.52 m (4.2–5.0 ft), wingspan 2.5 m (8.2 ft), weight approx. 5 kg (11 lb).[28] Mainly grey-white all over, with a grey hindneck crest in breeding season, pinkish rump and spotted bill pouch.[28] Monotypic. Southern Asia from southern Pakistan across India east to Indonesia;[23] extinct in the Philippines and possibly eastern China.[28] Status: Near Threatened.[29]
Pink-backed Pelican
Pelecanus rufescens
Gmelin, 1789

Pink-backed Pelican
Length 1.25–1.32 m (4.1–4.3 ft), wingspan 2.65–2.9 m (8.7–9.5 ft),[30] weight 3.9–7 kg (8.6–15 lb).[31] Grey and white plumage, occasionally pinkish on the back, with a yellow upper mandible and grey pouch.[30] Monotypic. Africa, Seychelles and southwestern Arabia;[23] extinct in Madagascar.[32] Status: Least Concern.[33]
American White Pelican
Pelecanus erythrorhynchos
Gmelin, 1789

American White Pelican
Length 1.3–1.8 m (4.3–5.9 ft), wingspan 2.44–2.9 m (8.0–9.5 ft), weight 5–9 kg (10–20 lb).[34] Plumage almost entirely white, except for black primary and secondary remiges only visible in flight. Monotypic. Inland North America, wintering in Mexico.[23] Status: Least Concern.[35]
Great White Pelican
Pelecanus onocrotalus
Linnaeus, 1758

Great White Pelican
Length 1.40–1.75 m (4.6–5.7 ft), wingspan 2.45–2.95 m (8.0–9.7 ft), weight 10–11 kg (22–24 lb).[36][37] Plumage white, with pink facial patch and legs. Monotypic. Patchy distribution from eastern Mediterranean east to Indochina and Malay Peninsula, and south to South Africa.[23] Status: Least Concern.[38]
Dalmatian Pelican
Pelecanus crispus
Bruch, 1832

Dalmatian Pelican
Length 1.60–1.80 m (5.2–5.9 ft), wingspan 2.70–3.20 m (8.9–10.5 ft), weight 10–12 kg (22–26 lb).[36][37] Largest pelican; differs from Great White Pelican in having curly nape feathers, grey legs and greyish-white plumage.[30] Monotypic. South-eastern Europe to India and China.[23] Status: Vulnerable.[39]
Australian Pelican
Pelecanus conspicillatus
Temminck, 1824

Australian Pelican
Length 1.60–1.90 m (5.2–6.2 ft), wingspan 2.5–3.4 m (8.2–11 ft), weight 4–8.2 kg (8.8–18 lb).[40] Predominantly white with black along primaries and very large, pale pink bill. Monotypic. Australia and New Guinea; vagrant to New Zealand, Solomons, Bismarck Archipelago, Fiji and Wallacea.[23] Status: Least Concern.[41]