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Possible early morning whoops and knocks heard at a Forest Service cabin
The witness stayed overnight in a rented cabin with two children. After the children fell asleep, the witness lay awake on an uncomfortable cot and twice heard a whoop followed seconds later by a wood-knock sound from the southeast. The sounds seemed close and no source was seen; the forest had otherwise been quiet all afternoon and night.
Possible encounter disturbs a camper in a high country forest
The witness was camping with relatives and was awakened around midnight by rhythmic stick-cracking sounds that moved closer and farther. He dressed silently and exited his trailer to investigate, after which the knocking stopped at a distance and a double whoop sounded from the direction where he shined his flashlight. He interpreted the sequence as involving two animals, with one acting as lookout. No tracks were found during a search the next day.
Hunters have camper shaken and hear whoops on the North Kiabab
Two brothers were camping overnight in a popup camper while on a grouse hunting trip. In the middle of the night the camper was shaken several times, prompting one witness to go outside with a flashlight. He heard something walking in the timber but saw nothing when he shone the light, then after returning inside heard a series of loud whoops from a distance.
Knocks and whooping sounds heard north of Clint's Well
The witness was tent-camping with companions near Clint's Well when wood-on-tree knocks woke him around 3 a.m. He then heard about three whoop-like sounds over roughly ten minutes before it went quiet. A companion in a nearby tent reported hearing the same noises, and a next-day search found no sign after rain.
Various late night vocalizations heard on a property near Flagstaff
The witness was asleep in bed at home when awakened around midnight by fighting-like animal noises outside the window. After a pause, whoop-like calls were heard from multiple directions, followed by articulated grunting that frightened the witness and stopped when a car passed. Minutes later a loud branch crack was heard from the yard edge, and no sign was found the next morning.
Possible vocalization along the Verde River, near Dead Horse Ranch State Park
Late at night the witness stepped outside the house and heard a low, loud whooing vocalization coming from the river bottoms that lasted about a minute. As soon as the sound stopped, neighborhood dogs and distant coyotes began barking and howling at once. The witness stayed inside that night and found nothing further when checking the tree line the next morning.
Vocalizations heard at Woods Canyon Lake
The witness was camping with two relatives at a campground near a lake in pine forest. Around midnight they heard loud whoops and screams coming from the southwest near the lake. Other campers also woke up and dogs barked in response. The witness felt the sounds matched vocalizations he knew from reference recordings.
Midnight vocalizations disturb camping family near Mormon Mountain
The witness was camping with family in old-growth pine forest on Mormon Mountain east of Flagstaff. After going to bed around midnight, repeated whooping yells were heard approaching within about 100 yards, circling the camp, then moving away over about ten minutes. The witness, a lifelong hunter, said he had never heard such sounds until later hearing similar vocalizations on a research website.
Possible vocalizations heard at sundown near the North Rim of the Grand Canyon
The witness and seven relatives camped for several nights on a hunting trip and heard repeated double whoop vocalizations each evening from dusk until just after dark. The sounds came from ridges around camp, with a regular source to the west and additional answering sources to the southeast and north on later nights. The witness said the sounds resembled examples on the archive site and were unlike familiar animal sounds of the region.
Whoop near Payson Or Heber, Arizona
The witness and his father heard whoop-like vocalizations during the same camping weekend.