SAN FRANCISCO, Agusan del Sur — A migratory Pied heron (Egretta picata) was spotted at Lake Mambagongon in the Agusan Marsh Wildlife Sanctuary, potentially representing the first documented record of the species in the Philippines. A team of biodiversity experts from the Agusan Marsh Wildlife Sanctuary Protected Area Management Office (AMWS-PAMO) photographed the Pied heron last
