Red Crossbill

The red crossbill, or common crossbill, is a small finch with distinctive mandibles crossed at the tips, which let it extract seeds from conifer cones and other fruits. Adults are often brightly coloured, with red or orange males and green or yellow females, but there is wide variation in beak size and shape and in call types, leading to different classifications of variants (Wikipedia, general species account).

Using the crossed mandibles for leverage, crossbills efficiently separate the scales of conifer cones and extract the seeds on which they feed. Red crossbills breed in a variety of coniferous forests across North America and Eurasia. The source read does not name Bhutan, and gives no size or nest information, so none is stated.