Right. If you read the article I posted, these are invasive snails that both Limpkins and Snail Kites seem to be somewhat adapting to. Snail Kite young were having trouble with the larger snails. From the article:
“What is truly remarkable, however, is that these hardy invasive snails seem to be supplementing the declining native P. paludosa and have jump started Limpkin and Snail Kite population growth. Both species have been documented readily feeding on invasive snails, and the latter may even be adapting to this novel prey (Snail Kites are increasing in body size and bill length).”
From: <ia-bird...> <ia-bird...> On Behalf Of Ric Zarwell
Sent: Monday, July 25, 2022 2:48 PM
To: IA-BIRD <ia-bird...>
Subject: Re: [ia-bird] Limpkin question - not sighting
Apple Snails are a favorite food (perhaps the primary food) for Snail Kites in Everglades N.P. and other areas of South Florida.
Not sure of the range of Apple Snails, but would doubt it reaches the latitude of Iowa and Ohio.
From: 'Stan Buman' via IA-BIRD < <mailto:<ia-bird...> <ia-bird...>
Sent: Monday, July 25, 2022 8:08 AM
To: <mailto:<ia-bird...> <ia-bird...>
Subject: [ia-bird] Limpkin question - not sighting
From the limited reading that I have done, it seems Limpkins have an infinity for Apple Snails. Do I understand correctly that Apple Snails are not native to Iowa?
When I look thru my photos from Saturday morning, the Limpkin is definitely eating snails. If there is a “snail expert” in Iowa, it would be interesting to know what species of snail is being consumed by the Limpkin.
This might help us understand why Limpkins are showing up in the Midwest.
There is getting to be a pretty good-sized collection of snail shells around one of the matts of vegetation that the Limpkin stands on to devour its prey.