It is not common to see the white-tufted grebe in the alternate plumage at this time of the year. Simón and Sergio say they were building a nest.
It is not common to see the white-tufted grebe in the alternate plumage at this time of the year. Simón and Sergio say they were building a nest.
For the breeding season grebes change their basic o non-breeding plumage into the alternate or breeding one. The adults ready to breed lose their overall brown colouring and darken. Light bill, white throat and reddish neck become black. Likewise the black upperparts contrast with chestnut flanks.