What are the chances of seeing a White-Lined Sphinx in San Francisco?
With luck
About 10% of wildlife watchers report a White-Lined Sphinx sighting in San Francisco on a given day, based on 599 verified sightings from GBIF citizen-science data. It is the 41st most-seen of the 737 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
When is the best time to see a White-Lined Sphinx in San Francisco?
August
In that month about 20% of wildlife watchers report a White-Lined Sphinx in San Francisco on a given day, against under 5% in October to January, the lowest months. That is one of San Francisco's driest months, with almost no rain against 110 mm in December.
What time of day is best to see a White-Lined Sphinx?
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most White-Lined Sphinx sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Is San Francisco the best place to see a White-Lined Sphinx?
17th of 35
Of the 35 cities where we can rate White-Lined Sphinx sightings, San Francisco ranks 17th at about 10%. The best odds are in Mesa (United States, about 30%), Tijuana (México, about 30%) and Las Vegas (United States, about 20%).
Where does the White-Lined Sphinx sighting chance come from?
GBIF citizen-science records
It is estimated from how often the White-Lined Sphinx is recorded against all the insects logged in San Francisco (599 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.