Maintaining the health of gamecocks requires diligent care, especially when it comes to parasite control. Internal and external de-worming plays a crucial role in preventing illnesses caused by worms and external parasites such as mites and lice. These parasites can weaken birds, reduce their energy, and severely impact their performance in the gallera. Internal de-worming typically involves administering antiparasitic medications that target various types of intestinal worms. It is important to follow proper dosage instructions and treatment intervals to ensure effectiveness and avoid resistance. External de-worming includes treating the birds' skin and feathers with appropriate topical insecticides or sprays to eliminate parasites residing on the surface. Besides medications, maintaining a clean environment in the gallera is vital. Regularly cleaning the coop, removing waste, and ensuring dry bedding helps reduce parasite populations naturally. Good nutrition also supports the immune system, helping birds resist infestations. Periodic monitoring is key—regularly inspect the birds for signs of parasites such as excessive scratching, feather loss, or visible mites. Early detection allows prompt action, preventing widespread infestation. When working "Trabajando en la gallera" (working in the gallera), combining manual observation with preventive treatments aids in keeping the gamecocks healthy and competition-ready. By applying comprehensive internal and external de-worming protocols alongside proper management practices, bird caretakers can significantly enhance the welfare and performance of their gallo finos. This holistic approach is essential for anyone serious about gamecock health and success in the gallera.