While it's essential to take precautions when handling objects or areas potentially exposed to bird droppings, pulling weeds under a bird feeder alone is unlikely to put you at risk of contracting bird flu. However, adhering to general hygiene practices is always recommended, such as washing your hands thoroughly with soap and water after gardening or handling any objects that may have come in contact with bird feces.
If you observe sick or dead birds in your area, it's best to avoid them and report the incident to your local wildlife or animal control agency. This helps monitor the spread of diseases and ensures proper management and control measures.