The Correlation Between Rhythmic Changes of Body Temperature of Small Passerine Birds () and Non-Tidal Gravity Fluctuation in the 12-30 Minute Period Range

Previously, a connection between animal activity and deformational changes in the lithosphere was established. We have investigated this phenomenon using the example of the relationship between the body temperature dynamics of males of the common greenfinches () and gravimeter data. For a 12-30-minute range of periods, a simultaneous change in the power of the prevailing harmonics of body temperature and gravimeter readings is shown, which indicates the presence of a connection between these processes. It is shown that a stable positive correlation occurs only during the period of bird activity. Therefore, fluctuations in the gravimeter readings in the 12-30 minute range of periods can be considered as a marker of an as yet unidentified biotropic environmental factor affecting animal activity.