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Jose Honorato Lozano painted this view of the Pateros River in the late 19thC and you can see the duck (pato) industry that gave the place its name. The best balut comes from this Southern Tagalog town, so does the “Peking Duck” served in some local restaurants. One 19thC account says that the men of Pateros sat on the eggs to warm them, they were idle human incubators!

(via History - Ambeth R. Ocampo)