There are a few interesting things going on in this video: gular fluttering, nictitating membranes, and head bobbing. Owls and other birds use gular fluttering to stay cool when the temps are high. Owls nictitating membranes (essentially a second eyelid) help protect their eyes when attacking prey. Lastly, head bobbing (motion parallax) helps owls triangulate their sight on a given subject since their eyes are fixed in their skull and cannot move on their own.
Tag: birding
Nesting screech owls
This is year seven for the screech owls to use the backyard nestbox. They successfully fledged offspring the previous 6 years. Typical clutches started with three to four eggs with all nestlings fledging and hanging around the yard for a month or so, while learning the ropes from their parents before dispersing. Last year there were five eggs, but only one survived to fledge (I suspect secondary poisoning from rodenticide). In this video the male brings his mate a gecko snack while she incubates her eggs.
Owl fledgling watches bats
This great horned owl fledgling was getting a drink at a remote desert waterhole when bats decided they were also thirsty. Not sure which bat species they are, but it’s fun to watch them swoop in and try to drink while the owlet watches.
Screech owl copulation and feeding
This year, the fourth season of a Western screech owl pair using the nestbox in my yard, was a difficult time for the owl pair. Five eggs laid and hatched, but only one nestling survived to fledge. This video shows a copulation event after the eggs hatched and when only one nestling remained. It also shows how the adult male brings food to the adult female to feed her nestling.
The lone screech owlet
This year only one of five nestling screech owls survived to fledge. Based on the body condition of the nestlings that died, I suspect secondary poisoning by rodenticide. The surviving nestling fledged a few weeks ago and I’ve seen her perched in a nearby tree with one of her parents now and then.
A Big Little Owl & Black Bear Cub
Here are two interesting camera trap videos, one from my yard and one from Arizona’s Sky Islands. The first video shows an alarmed Western screech owl in a birdbath during the day. She was trying to escape the 107 degree temps and her nestbox was too hot. I think a Cooper’s hawk landed on the fence near the birdbath.
In this second video, a black bear cub has a swim with her mom then takes an interest in my camera trap:
Screech Owls Enduring the Heat
Yes, I am an opportunistic wildlife observer. So, yes, another western screech owl post. More than six weeks after fledging, the owlets are still hanging around with their mom and dad. In this clip, two fledglings are in the suspended bird bath with, who I believe, is their dad (based on plumage characteristics and over 4 months of observation). The temps have been high, 105 degrees and above (40+ Celsius).
Western Screech Owlet Action
The Western Screech owl fledglings have continued to use the backyard waterholes and patio after fledging nearly two weeks ago. It appears the adult female is feeding them and teaching them to hunt while the adult male has not been captured on video since the little owls fledged.
The Screech Owlets have left The nestbox
The little western screech owls fledged last night. After documenting them in their nestbox every night and some days for over three months I feel a bit sad and will miss them. They are now out in the wild world and will, hopefully, have successful careers as owls. They’ll still be fed by their parents for a little while longer as they learn to hunt and fend for themselves.
Western Screech Owl Nesting Update
The western screech owl pair have been busy feeding three hungry owlets. The nestlings appear to be nearing the time to leave their nest. Last night both parents made over 16 feeding trips which included grubs, geckos, and a small packrat.
On previous nights, prey items also included a small bird, western blind snakes, spiny lizards, moths, and even a hummingbird. Seeing the dead hummingbird getting eaten by an owlet made me sad as hummingbirds are dear to my heart.
The young screech owls have also been spending time checking out their daytime word:
My Earth 