Both known for their red colouring with white 'throat patch'. The red on the red-necked Phalarope (that's the little fella on the left just in case you weren't sure) is a line extending along the neck to just behind the eye. On 'the other fella' it's all over the top of his head!
Whilst efforts are being made to re-establish the breeding population in Ireland, we have it on good advice that Greg has no intention of returning to help. However, to his delight, apparently sexual roles are reversed in the red-necked, with several females competing for males.
Further details available on request . . .