ajohn

The head pattern is useful for these. On Sulphur-breasted, the dark eyestripe and sides to the crown are black, but on Goodson's are dark green. On the first photo you can see that these look green, suggesting that this is a Goodson's. I think also that Sulphur-breasted would be stronger and brighter yellow on the underparts, whereas this bird is slightly duller yellow and is paler on the flanks.