Lava Heron? A report by Venicio Wilson

Yesterday while walking Casco Viejo with a friend I spotted this "very dark" Green Heron on the rocks below Paseo Esteban Huertas at Las Bóvedas. I was looking at the picture I made with my cellphone and my binoculars (Binophonescoping) and the bird looks very similar to the pictures of Lava Heron from Galapagos Islands. With the high number of ships and sailboats crossing the Panama Canal there is a small chance for an accidental Lava Heron?