The underparts are darker with a bluish grey tinge. Russet is a dark brown color with a reddish-orange tinge. It is a shade of grey that has a bluish purplish tinge. The eggs are a light blue color, often with a slight greenish or whitish tinge. Its colour is widely stated as white with a faint bluish-green tinge. Young leaves have an attractive reddish tinge. "Gunmetal" may actually refer to a shade of gray that has a bluish purple tinge. The interdigital cavities are deep, with a reddish tinge and smell strongly. It is a silvery-white lustrous metal with a slight golden tinge. The erect stems are grooved and often have a red-purplish tinge. Its tail is pale brown with a tinge of black toward the tip. These wines can also develop a brownish tinge. The bill is ochre to greyish, with a pink tinge. The wings are translucent with a yellowish tinge at their base. Nickel is a silvery-white metal with a slight golden tinge that takes a high polish.