[expand]
Birds provided primary weather indicators. Their behavior changed noticeably before major weather shifts, responses to pressure changes and wind patterns that humans detected only when weather was already changing. Ravens and crows flying in specific patterns—high and straight-line movement indicated fair weather continuing, low erratic flight suggested approaching storms. The observation was consistent enough to be encoded in proverbs and transmitted across generations, the behavior-weather correlation verified through repeated observation.
Swallows flew at different heights depending on air pressure and insect activity. High-flying swallows indicated stable high pressure, good weather continuing. Low-flying swallows suggested low pressure system approaching, insects driven lower by atmospheric changes, the swallows following their food, their height indirectly indicating pressure systems that would soon bring weather changes. This observation was accurate—modern meteorology confirms that insect activity and therefore swallow feeding patterns do correlate with pressure systems, validating the traditional observation even as it clarifies the mechanism.
Larger animals showed weather-related behaviors. Cattle lying down in fields suggested rain approaching—modern research indicates this may relate to animals seeking dry ground while it’s still available, anticipating moisture that their senses detected before humans. Horses becoming restless and difficult to control often preceded severe storms, their sensitivity to electromagnetic changes associated with storm systems creating behavioral changes observable by handlers who understood their animals’ normal temperaments.
Seasonal predictions required longer-term observation. The thickness of animal winter coats in autumn supposedly predicted winter severity—thicker coats indicating harsher winter ahead, the animals somehow knowing to prepare more heavily for difficult conditions. Modern biology suggests this might relate to early-season temperature patterns affecting coat growth, the animals responding to actual early winter conditions that correlated with but did not necessarily predict overall winter severity. Yet the correlation was often useful, the observation providing estimate of coming winter that helped with preparation decisions even if the causal mechanism was different than supposed.
[/expand]