id	keyword
inhs-169	species
inhs-169	population
inhs-169	zone
inhs-169	birds
inhs-169	illinois
inhs-169	bird populations
inhs-169	habitat
inhs-169	acres
inhs-169	southern
inhs-169	state population
inhs-169	fields
inhs-169	winter
inhs-169	summer
inhs-169	northern
inhs-169	population densities
inhs-169	sparrow
inhs-169	census
inhs-169	summer population
inhs-169	areas
inhs-169	winter population
inhs-169	central
inhs-169	forest
inhs-169	zone population
inhs-169	acreage
inhs-169	summer habitats
inhs-169	years
inhs-169	bird species
inhs-169	data
inhs-169	illinois birds
inhs-169	zone species
inhs-169	winter habitats
inhs-169	red
inhs-169	hay
inhs-169	table
inhs-169	shrubs
inhs-169	fallow
inhs-169	corn
inhs-169	clover
inhs-169	pasture
inhs-169	censuses
inhs-169	graber
inhs-169	number
inhs-169	sparrow population
inhs-169	wheat
inhs-169	winter bird
inhs-169	small
inhs-169	forest species
inhs-169	common
inhs-169	avifauna
inhs-169	summer bird
inhs-169	southern zone
inhs-169	density
inhs-169	strip
inhs-169	breeding
inhs-169	lark
inhs-169	census years
inhs-169	fallow fields
inhs-169	orchard