"a predatory bird"
"the rapacious wolf"
"raptorial birds"
"ravening wolves"
"a vulturine taste for offal"

"a rapacious divorcee on the prowl"
"ravening creditors"
"paying taxes to voracious governments"

"edacious vultures"
"a rapacious appetite"
"ravenous as wolves"
"voracious sharks"