Both stamps belong to a set issued in 2023 by Singapore. The upper one features the Philippine eagle (Pithecophaga jefferyi), which has already been discussed.

The lower stamp shows a female (left) and a male (right) knobbed hornbill (Rhyticeros cassidix), a vulnerable species native to Indonesia. It feeds mainly on fruits with insects and small vertebrates playing a minor role in its diet. It is threatened by habitat destruction and hunting.

Thank you Heather!