[en] The thermal neutron capture γ-ray spectra for 60 and 64Ni have been observed from a sample previously irradiated to produce long-lived isotopes of 59Ni and 63Ni. New values of the neutron binding energy have been obtained for the compound systems 59Ni, 60Ni, 61Ni, 62Ni, and 64Ni. The γ-ray spectra for neutron capture by 59Ni and 63Ni are not so strongly peaked at high energies, as the γ-ray spectra observed for neutron capture by the even-mass target nuclei in the A approx. = 40--64 mass region