Although the time of release for the four wolves in this study was
selected in order to maximize chances that they would remain in their
new range, possibly a release earlier in winter would be more
successful. The failure of the adult female to conceive was probably a
result of captivity and handling, although this needs confirmation
through additional studies. Nevertheless, an early winter release might
be favored by deep snows hindering travel. Furthermore, by breeding
season in late February the wolves might already have settled into an
area. Then the entire breeding cycle might take place outside captivity
and stand a better chance of succeeding.