  Scattering polarization in the Sr I 4607.3 \AA \ line observed with high
resolution is an important diagnostic of the Sun's atmosphere and magnetism at
small spatial scales. At present, spatially resolved observations of this
diagnostic are rare and have not been reported as close to the disk center as
for $\mu=0.6$. Our aim is to measure the scattering polarization in the Sr I
line at $\mu=0.6$ and to identify the spatial fluctuations with a statistical
approach. Using the Fast Solar Polarimeter (FSP) mounted on the TESOS
filtergraph at the German Vacuum Tower Telescope (VTT) in Tenerife, Spain, we
measured both the spatially resolved full Stokes parameters of the Sr I line at
$\mu=0.6$ and the center-to-limb variation of the spatially averaged Stokes
parameters.
  We find that the center-to-limb variation of the scattering polarization in
the Sr I line measured with FSP is consistent with previous measurements. A
statistical analysis of Stokes $Q/I$ (i.e., the linear polarization component
parallel to the solar limb), sampled with $0.16$" pixel$^{-1}$ in the line core
of Sr I reveals that the signal strength is inversely correlated with the
intensity in the continuum. We find stronger linear polarimetric signals
corresponding to dark areas (intergranular lanes) in the Stokes $I$ continuum
image. In contrast, independent measurements at $\mu=0.3$ show a positive
correlation of $Q/I$ with respect to the continuum intensity. We estimate that
the patch diameter responsible for the excess $Q/I$ signal is on the order of
$0.5$"-$1$". The presented observations and the statistical analysis of $Q$/$I$
signals at $\mu=0.6$ complement reported scattering polarization observations
as well as simulations.
