Do You know that Marinduque is also the habitat of the Philippine Cobra and the Python? Based from the personal experience of our new house maid, the Philippine cobra and the python constrictor thrive very well on her neighborhood. Our new help has a house in Balagasan-a barrangay in the interior of the province that is mountainous but close to the Boac River. The python would visit their backyard at night and all she could her was the gasping breath of one of her roosters. On the otherhand she almost step on a cobra on her way to do her laundry in the nearby creek, a subsidiary of the Boac River.
The Philippine cobra occurs mostly in the northern regions of the Philippines. They can be found on the islands of Luzon, Mindoro, Catanduanes, and Masbate. This species likely may occur in other neighboring islands, but this remains unconfirmed. Records from the Calamianes group and Palawan require confirmation. The above information is what Wikipedia says. But I have now documented that the Philippine Cobra is also found in the mountains of the interior of the province of Marinduque. This knowledge is based on the personal experience of our new house maid who is a resident of Balagasan. Balagasan is in the interior of the province which is mountainous, but not too far from the Boac river and its small creeks. ]
So if you want to see a Philippine cobra and a python killing a chicken, go the mountainous barrangays of Boac such as Balimbing, Balagasan, Mainit and Binonga.