Biological Survey Season is here!
Del Sol Group has been busy preparing for surveys for various special status species. DSG’s Biologists are certified in numerous special-status species, and recently include the Western burrowing-owl (Athene cunicularia hypugaea), Southwestern willow-flycatcher (Empidonax traillii extimus), and Sonoran desert tortoise (Gopherus morafkai).
A summary of the key species and survey times are provided below:
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Survey |
Timing to Start Surveys |
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Rare Plant Species
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Varies depending on species, habitat, latitude, and elevation, but generally one spring and one summer visit are recommended |
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Native and nonnative fish surveys all year including; Gila Trout, Apache Trout, Loach minnow, Gila Chub, Roundtail Chub, Desert Pupfish, Loachminnow, and Gila Topminnow |
April thru September |
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Desert Tortoise |
April – May or September – October |
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Riparian Birds/Burrowing Owl
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Southwestern Willow Flycatcher May 15 – 31 Western Yellow-billed Cuckoo June 15 – July 1 Western Burrowing Owl February 15 – April 15 |
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Northern Mexican and Narrow headed gartersnake surveys |
May through Sep |
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Chiricahua leopard frog |
April thru September |
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Yuma clapper Rail and Marsh Bird Surveys |
March thru May |