Which navigational consequence occurs when Indigo Buntings experience abnormal zenith cloud-scatter patterns?

💡 Explanation

Disrupted cloud scatter interferes with skylight polarization, altering the celestial compass calibration process used to determine migratory routes, because ultraviolet light is refracted unevenly. They rely on the overall light pattern. Therefore they lose direction, rather than timing differences or magnetic sensors.

• Which risk increases for a migratory bird when feather barbules fail due to parasitic mite infestation?
• Which efficiency decreases if blood flow direction equals flow direction in fish gills during osmoregulation?
• Which outcome results when swim bladder pressure exceeds external water pressure constraints during rapid ascent?
• Which outcome occurs when a CAM plant experiences prolonged drought during the night cycle?
• Which risk increases when mesophyll photosynthesis rate limits sugar production?
• Which consequence results when aquaporin channel inhibition affects stomata?