Oropendolas have rounded yellow tails and heavy bills swollen at the base, to form frontal shields.
Experts at UK's biggest consumer website MoneySavingExpert.com said the solution is to spread the cost over the season to avoid heavy bills in December.
Mainly gray and white, it has a naked pinkish head and neck, a pendant, reddish, inflatable throat pouch, and a straight, heavy bill.
The neck is drawn back in herons, slightly so in the hammerhead; in the shoebill it is fully drawn in with the heavy bill resting on the breast, as in pelicans.
The shovel-billed kingfisher (Clytoceyx rex) of New Guinea is partly terrestrial and is known to feed on beetles and earthworms; the latter are apparently dug from the soil of the forest floor with the bird's short, heavy bill.
At the end of January Greece's highest administrative court ruled that pay reductions for the armed forces and emergency services were unconstitutional: the government now faces a heavy bill in back pay.
This gave a helping hand to hard-hit hotel groups, which are often highly leveraged and use a lot of energy, as well as battered airlines, with heavy bills for fleet finance and aircraft fuel.Many firms made cuts across a broad swath.
Most antbirds have proportionately large, heavy bills.
Most have heavy bills, which in many species are hooked at the tip.
The long and heavy bill is about one and a half times as long as the head and is hooked at the end.
It is a large crow-like bird, around 50 cm long on average, with yellow irises, a heavy bill, and black plumage with white wing patches.
