In appearance the great woodswallow is very similar to the more widespread white - breasted woodswallow .
In appearance the great woodswallow can be distinguished by its darker black upper side plumage and by the presence of a semi-oval black patch below the throat .
In appearance the great woodswallow is very similar to the more widespread white - breasted woodswallow but can be distinguished by its darker black upper side plumage and by the presence of a semi-oval black patch below the throat .