TIM Version 3.0 beta Technical Description and User Guide - Appendix G - Equation for Calculating Home Range for Insect Eating Birds

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Table G.1 and Figure G.1 depict the data reported by Schoener 1968 for species identified in field surveys associated with agricultural fields/orchards and adjacent habitats that are described in Appendix D.

Table G.1. Birds Cited by Schoener (1968) That Were Identified in Appendix D
(scientific name)
(common name)
Predominant Diet* Additional diet items* Mean body weight (g)** Home Range (ha)
Passerina cyanea Indigo bunting insects seeds, fruit 14.5 0.11
Thryothorus ludovicianus Carolina wren insects seeds, fruit 21 0.12
Icteria virens Yellow-breasted chat insects fruit 25.3 0.13
Vireo griseus White-eyed vireo insects fruit 11.4 0.13
Dendroica petechia Yellow warbler insects fruit 9.5 0.17
Sialia sialis Eastern bluebird insects fruit 31.6 1.01
Seiurus aurocapillus Ovenbird insects plant matter 19.4 1.01
Sturnella magna Eastern meadowlark insects seeds 89 3.04
Sturnella neglecta Western meadowlark insects seeds 97.7 3.04
Guiraca caerulea Blue grosbeak insects seeds 28.4 6.19
Tyrannus tyrannus Eastern kingbird insects fruit 39.5 8.38

*From: Gough et al. (1998).

**From Dunning (1984).

***From Schoener (1968)

Fitted line to points with y-axis of Home range (ha) and x-axis of BW (g).  R-square = 0.5124Figure G.1
Home Range and Body Weights of Species Included in Table G.1.

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