Status and breeding ecology of the southwestern willow flycatcher in the Grand Canyon

Author(s)
Sogge, Mark K., Timothy J. Tibbitts, Jim R. Petterson
Year
Article Title
Status and breeding ecology of the southwestern willow flycatcher in the Grand Canyon
Volume
28
Pages
142-157
Start Page Number
142
Final Page
157
Review

Datapoints

Displaying 1 - 6 of 6 datapoints.
Species: Southwestern Willow Flycatcher (Empidonax traillii ssp. extimus)
Exposure Endpoint Type Endpoint Description Endpoint Value Sample Size Units Life Cycle Stage Specific Location Range Type
Territory Size breeding territory size 0.10 7 pairs ha Adult Colorado River 0.06-0.2 Exposure Factor Datasets
Territory Size territory size of unpaired male 0.5 1 ha Adult Colorado River Exposure Factor Datasets
Fledging or Weaning Rate percent of nests that fledged at least one young 18% 17 nest attempts (in 5 sample years) % Both Adults and Juveniles Colorado River Exposure Factor Datasets
Clutch or Litter Size mean clutch size 3 3 nests eggs/nest Adult Colorado River Exposure Factor Datasets
Time of Mating/ Laying date when first eggs found May 30 (onset) 17 nest attempts (in 5 sample years) Adult Colorado River Exposure Factor Datasets
Time of Fledging or Metamorphosis dates of earlies and latest recording fledging June 29 (earliest fledging) - July 13 (latest fledging) 17 nest attempts (in 5 sample years) Fledgling Colorado River Exposure Factor Datasets

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