Barn Swallow

I spotted this Barn Swallow at the Delaware Raritan Canal.

Here's a joke originally about Barn Owls.

Barn Swallows when humans first started building barns: "Oh yeah, it's all coming together!"

In actuality, Barn Swallows do kind of like nesting in man-made structures, but don't require those structures to be barns. For a few years they were using a roofed bird blind at Negri-Nepote Native Grassland Preserve. In this case I believe the Barn Swallow may have been building a nest under a bridge at the canal.

Though I'd like to think that Barn Swallows and Barn Owls would bond over their shared love of barns, I'm pretty sure that Barn Swallows are on the menu of the Barn Owls, seriously jeopardizing any neighborly relationship [1].

Barn Swallows are considered the most widespread swallow in the world, living on parts of every continent except Antarctica [2]. None of its closest relatives live in the New World, and its genus seems to be best represented in Africa. Although its most commonly seen relative in NJ is probably the Tree Swallow, I've gotten pictures of Northern Rough-winged Swallows and seen (rarely) Purple Martins too. The Barn Swallow's rufus underparts distinguish it from its Tree Swallow relatives.

May 10, 2023 at Delaware Raritan Canal
Photo 282316467, (c) jpviolette, some rights reserved (CC BY-NC)

May 10, 2023 at Delaware Raritan Canal
Photo 282316429, (c) jpviolette, some rights reserved (CC BY-NC)

[1] Barn Owls will eat birds, though their specialty is hunting nocturnal mammals. While adult Barn Swallows are probably too fast and elusive for Barn Owls to bother trying to hunt, Barn Swallow nestling would almost certainly be in jeopardy.

[2] Usually if there is 1 continent that a plant or animal doesn't live on, it turns out to be Antarctica. I suspect it might have something to do with the climate. 😉

Comments

Post a Comment

Popular posts from this blog

Northern Watersnake

Image
This April I went to Great Swamp National Wildlife Refuge with the hope (among other hopes) of seeing the Northern Watersnakes during mating season. There were 2 problems with this: I think it was slightly late in the season for this. The boardwalk trail where I had seen them in the past was partially closed due to repairs. So although I didn't see any of the 2+ intertwined snakes that I'd seen in the past, but there were still Northern Watersnakes warming themselves in the sun: April 13, 2023 at Great Swamp Photo 272117862, (c) jpviolette, some rights reserved (CC BY-NC) And here's another one coming out of the water. April 13, 2023 at Great Swamp Photo 272119139, (c) jpviolette, some rights reserved (CC BY-NC)
Read more

Female Brown-headed Cowbird

Image
Like quite a few birds, this bird is easier to identify when spotted with her significant other ; she's a Brown-headed Cowbird . Due to their tendency to be monogamous plus plain old birds-of-a-feather behavior, I usually see them with prominently brown-headed males around, greatly improving my confidence in IDing them. My understanding is that Brown-headed Cowbirds are the only obligate brood parasites in my area. Obligate brood parasites have essentially lost all their parenting skills, and thus if they were ever unable to fool other birds into raising their young, they would (almost certainly) go extinct [1]. There are, however, other brood parasites in New Jersey. These are called facultative brood parasites, and these birds will usually raise their own offspring, but will also engage in brood parasitism. (Exactly when birds perform facultative brood parasitism seems variable; one source said it occurred when resources were scarce while another said it occurred when resource
Read more

Rooftop Turkey Vultures

Image
I met these Turkey Vultures by just walking out of my apartment. (I theoretically could have gotten a picture without going outside, but that extra layer of glass can degrade picture quality a little.) Although they don't show up on these rooftops daily, they're not an uncommon visitor to my apartment complex. Similar to this spot of the woods , I wouldn't expect this to be a great place to find carcasses. I'm thinking they're here mostly because: They don't have to worry much about predators up there. They get a pretty good view of the area in case something should happen to succumb. (This apartment was near the top of a hill, providing a better view than most of the other apartments.) Since this picture was from February, it's probably a slightly warmer spot, especially near those furnace vent pipes. Although these are Turkey Vultures, it's also not unusual to see Black Vultures up there too. February 28, 2023 at Finderne Photo 264703396, (c) jpviole
Read more