A Fledgling Learns to Feed

April 16, 2017  •  1 Comment

The Verdin, a common bird of the Sonoran Desert, frequently feeds on the flowers of the Ocotillo plant -- not by gleaning insects (their typical diet), but by piercing the base of the flowers to obtain the nectar within. These birds are quite adept at obtaining nourishment and liquid in this manner, but not so for young fledglings.  On a recent desert trip, I was able to witness and photograph the antics of a recently-fledged Verdin as it learned to feed on these flowers, often without success.

 

Here is an adult Verdin, demonstrating proper flower-piercing technique:

Verdin, feeding on nectar of Ocotillo flowerVerdin, feeding on nectar of Ocotillo flowerBorrego Springs, CA

 

At first, this recently-fledged Verdin would beg for food from its nearby parent by fluttering its wings:

Verdin, fledgling beggingVerdin, fledgling beggingAnza-Borrego Desert State Park, CA

 

Below, our young friend, amidst an abundance of food, appears not to know how to approach the task of feeding:

Verdin, fledglingVerdin, fledglingAnza-Borrego Desert State Park, CA

 

Here the young bird has found a flower to work on, but is using the wrong technique, as it approaches the flower from above instead of at the base. Also, he has chosen a dried out blossom which would not yield nectar:

Verdin, fledgling feedingVerdin, fledgling feedingAnza-Borrego Desert State Park, CA

 

Here he finds a good flower to feed on, but technique is still a problem, as the fledgling pulls at the flower instead of piercing the base:

Verdin, fledgling feedingVerdin, fledgling feedingAnza-Borrego Desert State Park, CA

 

Tugging the flower by the inexperienced bird leads to unforeseen developments:

Verdin, fledgling feedingVerdin, fledgling feedingAnza-Borrego Desert State Park, CA

Verdin, fledgling feedingVerdin, fledgling feedingAnza-Borrego Desert State Park, CA

Verdin, fledgling feedingVerdin, fledgling feedingAnza-Borrego Desert State Park, CA

 

And sometimes just hanging on is a challenge, let alone feeding:

Verdin, fledglingVerdin, fledglingAnza-Borrego Desert State Park, CA

 

But eventually, the fledgling's practice begins to pay off, as the little guy is seen below demonstrating the proper feeding technique. Unfortunately, the flower he's working on seems to be pretty dry.

Verdin, fledgling feedingVerdin, fledgling feedingAnza-Borrego Desert State Park, CA

 

I expect that this persistent fledgling will have perfected his flower-piercing technique after another day or two of practice.  Then he'll have to learn how to catch insects!

 


Comments

LLL(non-registered)
Great sequence; I appreciate your approach. I've been doing similar observations with cactus wrens since moving from Catalina late in 2021 to a place adjacent to Sentinel Peak Park. It was up in Catalina where I first observed hens teaching fledglings what they eat and showing them where to find it [on the limbs of trees, beneath the bark, just below ground level, etc.], then putting it into their mouths as they look on. So much of what I absorbed and understood from formal education—I hesitate to say I was taught it—was that 90% or more of what critters do is *instinct*. Like you, close observation has taught me that is not the case. Their migration routes are miraculous and I still marvel at how locations get imprinted upon birds—and insects—but as you mentioned in your captions, young one have a lot of learning to do. They watch and try, and eventually get the hang of things; but it's a process, certainly not all instinct. They learn by experience just like we do: trial and error. If I may ask, where did you shoot this sequence? I'm currently living in Tucson, adjacent to Sentinel Peak Park, and do a lot of walking, watching, and shooting in the section of the park between the east facing slope of the Tumamoc range, and the west facing slopes of the range west of Panorama Circle—a range which I refer to as the Panorama Range—rather that in the section of the park immediately adjacent to A mountain. I don't have a web sight but publish my work in a monthly newsletter.
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