Beautiful blue and gold birds

Some Euphonias for you:

Dario Sanches from SÃO PAULO, BRASIL, CC BY-SA 2.0, via Wikimedia Commons
Francesco Veronesi from Italy, CC BY-SA 2.0, via Wikimedia Commons
Dario Sanches, CC BY-SA 2.0, via Wikimedia Commons
Hector Bottai, CC BY-SA 4.0, via Wikimedia Commons
Dario Sanches from São Paulo, Brazil, CC BY-SA 2.0, via Wikimedia Commons

That yellow! A pair of violaceous euphonia once started building a nest in one of my orchid pots. The color is just mind-bogglingly sunflower yellow, especially in contrast to the deep purplish-blue of the back. An incredible bird.