Bats around Austin

Austin, Texas, United States

Every measure here is worked out per 5 degree square, so this covers the wider area around Austin (30° to 35° latitude, -100° to -95° longitude, about 550 km across), not the city alone. Counts are shares of all bats records in the same weeks, so busier stations do not inflate them (methods).

Arrived in the last four weeks

No bats arrived here in these weeks last year, as far as the records show.

Expected in the next six weeks

No arrivals expected here in the next six weeks, going by last year.

Dates are last year's first regular records after at least six weeks away, with each species' own uncertainty on its page. Each species page can email you when it turns up.

Most recorded, last eight weeks

SpeciesRecordsPer 1,000
Evening Bat Nycticeius humeralis7,70098.6
Mexican Free-tailed Bat Tadarida brasiliensis5,74073.5
Big Brown Bat Eptesicus fuscus1,18415.2
Eastern Red Bat Lasiurus borealis670.9
Silver-haired Bat Lasionycteris noctivagans420.5
Pallid Bat Antrozous pallidus380.5
Big Free-tailed Bat Nyctinomops macrotis210.3
Northern Yellow Bat Lasiurus intermedius120.2
Tricolored Bat Perimyotis subflavus90.1
Hoary Bat Lasiurus cinereus60.1
Cave Myotis Myotis velifer20.0

How well this area is covered

Watched in 12 of the last 12 weeks for bats (enough records to count; unwatched weeks say nothing about absence). Active stations here in the last 30 days: 388 BirdWeather. Add a station to fill the gap.