Climate change is rapidly transforming high-altitude ecosystems, placing cold-adapted species at risk. We assessed the vulnerability of four Himalayan Pika species (Ochotona macrotis, O. roylei, O. nubrica, and O. sikimaria) by integrating species distribution models with landscape metrics and sensitivity indices. Using verified occurrence records and bioclimatic variables, we projected habitat suitability under moderate (SSP 2-4.5) and extreme (SSP 5-8.5) emission scenarios for 2050 and 2070.