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Relationships of
Vertebrate Animals
to this Plant:

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Digitaria spp.
(Crabgrass) [Poaceae]
(observations are from Martin et al. Houtcooper, Whitaker, and Meanley)

Birds

Alaudidae: Eremophila alpestris (Horned Lark) [seeds comprise 2-5% of the diet in eastern USA during fall, winter, & spring] MZN1951; Calcaridae: Calcarius lapponicus (Lapland Longspur) [seeds comprise 10-25% of the diet in NE USA & Northern Prairies during winter] MZN1951, Calcarius pictus (Smith's Longspur) [seeds comprise 0.5-2% of the diet in Illinois during spring] MZN1951; Columbidae: Zenaida macroura (Mourning Dove) [seeds comprise 2-5% of the diet in the Northeast during fall & winter] MZN1951; Emberizidae:  Junco hyemalis (Dark-eyed Junco) [seeds comprise 5-10% of the diet in NE USA during fall & winter & spring, seeds comprise 2-5% of the diet in the Prairie region during fall & winter & spring] MZN1951, Melospiza lincolnii (Lincoln Sparrow) [seeds comprise 5-10% of the diet in NE USA during fall] MZN1951, Melospiza melodia (Song Sparrow) [seeds comprise 2-5% of the diet in NE USA during fall & winter] MZN1951, Passerculus sandwichensis (Savannah Sparrow) [seeds comprise 10-25% of the diet in NE USA throughout the year] MZN1951, Spizella pallida (Clay-colored Sparrow) [seeds comprise 5-10% of the diet in Eastern Prairies during spring] MZN1951, Spizella passerina (Chipping Sparrow) [seeds comprise 10-25% of the diet in E USA throughout the year] MZN1951, Spizella pusilla (Field Sparrow) [seeds comprise 5-25% of the diet in NE USA & the Prairie region throughout the year] MZN1951, Spizelloides arborea (American Tree Sparrow) [seeds comprise 5-25% of the diet in NE USA & Eastern Prairies during winter & spring] MZN1951, Zonotrichia leucophrys (White-crowned Sparrow) [seeds comprise 2-5% of the diet in NE USA during fall] MZN1951; Icteridae: Molothrus ater (Brown-headed Cowbird) [seeds comprise 2-5% of the diet in NE USA during fall & winter & spring, seeds comprise 0.5-2% of the diet in SE USA] MZN1951; Motacillidae: Anthus rubescens (American Pipit) [seeds comprise 2-5% of the diet in NE USA during winter] MZN1951; Passeridae: Passer domesticus (House Sparrow) [seeds comprise 5-10% of the diet in eastern USA throughout the year, seeds comprise 0.5-2% of the diet in the Prairie region] MZN1951; Phasianidae: Colinus virginianus (Bobwhite Quail) [seeds comprise 0.5-2% of the diet in the Northeast] MZN1951, Meleagris gallopavo (Wild Turkey) [seeds & leaves comprise 0.5-10% of the diet in Pennsylvania & the Allegheny Mountains during summer & fall, seeds & leaves comprise 10-25% of the diet in Missouri during summer & fall, seeds have minor importance in the diet in Arkansas during summer] MZN1951 Mn1956

Mammals
Cricetidae: Peromyscus maniculatus (Deer Mouse) [small amounts of seeds are consumed, seeds comprise 0.5% of the diet by volume] Ht1978 Wh1966; Leporidae: Sylvilagus floridanus (Eastern Cottontail) [foliage comprises 5-10% of the diet in Connecticut throughout the year] MZN1951; Muridae: Mus musculus (House Mouse) [seeds comprise 3.5% of the diet by volume] Wh1966; Sciuridae: Ictidomys tridecemlineatus (Thirteen-lined Ground Squirrel) [seeds comprise 11.4% of the diet by volume and 21.5% by frequency in Indiana] Wh1972
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