Chorus Frogs

Despite the less-than-ideal photography conditions, this is most likely a Spring Peeper we met in the wetlands near the Duke Farms Orientation Center. Even if the picture doesn't capture the raw power and majesty of the inch-long Spring Peeper, it's still an excuse to talk about them.

Spring Peepers are a type of chorus frog, and they have 2 relatives in New Jersey: New Jersey Chorus Frog and the Upland Chorus Frog. Their vocalizations aren't terribly different:

  1. Spring Peeper: "Peep!"
  2. New Jersey Chorus Frog: "Creek!"
  3. Upland Chorus Frog: "Creek!" "Preep!"
It's surprisingly difficult to find these frogs even when you hear them singing all around you:
  1. They camouflage well.
  2. May be in water that's reflecting sunlight/flashlight glare.
  3. The ones in your immediate vicinity will sometimes go quiet when you're around them.
This program was in the evening, but even in broad daylight it's much easier to hear these guys than it is to spot them.

I think we can be fairly confident that this was a Spring Peeper because:
  1. New Jersey Chorus Frogs live in the southern half of New Jersey; AFAIK there are no populations of them in this area.
  2. While Spring Peepers have a reputation for singing early in the year, Upland Chorus Frogs actually sing even earlier in February.
  3. Finally, Spring Peepers are considered the most abundant of our chorus frog community.
March 25, 2023 at Duke Farms
Photo 282937156, (c) jpviolette, some rights reserved (CC BY-NC)

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