  We present initial results from a field survey for extremely red objects
(EROs, defined here as (R-K') >= 6 mag) covering 154 square arcminutes of sky,
from the first of 7 deep, wide-field K' images obtained as part of the Calar
Alto Deep Imaging Survey (CADIS). The 5-sigma point source detection limits are
K'=20.5 and R=25.0, while extended-source limits are up to 0.5-0.75 mag
brighter. We identify a total of 8 bright EROs with K' =< 19.0. Six of these
bright EROs are resolved and are likely to be galaxies, while the remaining 2
are unresolved, with colors consistent with their being low-mass galactic
stars. We derive a surface density for the 6 bright, extragalactic EROs of
0.039 +/- 0.016 per sq. arcmin, higher by a factor of 4 than previous values.
We estimate that the volume density of bright EROs to be as high as that of
nearby Seyfert galaxies.
