id	keyword
inhs-173	gizzards
inhs-173	cent
inhs-173	duck gizzards
inhs-173	contents
inhs-173	illinois
inhs-173	plant
inhs-173	animal
inhs-173	table
inhs-173	food
inhs-173	t t
inhs-173	ducks
inhs-173	volume
inhs-173	total
inhs-173	water
inhs-173	river
inhs-173	assistant
inhs-173	species
inhs-173	smartweed
inhs-173	seeds
inhs-173	material
inhs-173	plant foods
inhs-173	beetles
inhs-173	number
inhs-173	animal foods
inhs-173	pondweed
inhs-173	occurrence
inhs-173	survey
inhs-173	ph.d
inhs-173	teal
inhs-173	history
inhs-173	natural
inhs-173	millet
inhs-173	study
inhs-173	plant contents
inhs-173	illinois river
inhs-173	grass
inhs-173	habits