  The $\rm Fe_{1+y}Te_{1-x}Se_x$\ single crystals with the various Se/Te ratios
were studied by the microwave absorption and direct current resistivity
measurements. The comparison of the microwave absorption data and the
resistivity versus temperature made it possible to separate the contributions
of two types of spin fluctuations. One of them is due to the anisotropic
magnetic (nematic) fluctuations. It is observed over the wide temperature range
from 30K to 150 or 200K. In FeSe it has the maximum close to the structural
transition temperature. Another MWA anomaly is located in the narrow
temperature range above the superconducting transition. It is likely due to the
antiferromagnetic fluctuations. Annealing of a sample at the temperature around
300 C in the oxygen atmosphere made it possible to exclude the effect of excess
iron on the observed anomalies.
