New answers tagged ornithology
I'm only aware of two studies that have looked at Rock Pigeon home range size. Note that this isolated research and may not be representative of Rock Pigeons everywhere nor of other pigeon species. Rose and Nagel (2006) tracked 80 feral pigeons using GPS receivers and found 32% remained within 0.3 km of their roost location. Only 7.5% traveled over 2km ...
The best way to foil Mynas is to use an Anti Myna baffle over the nest box. Since Myna always fly directly into the nest box hole, this baffle prevents that while allowing other species to enter the box.
Like other Corvids (Jays, Crows, and Ravens), Blue Jays are omnivorous and can eat and digest both animal and plant matter. Animal matter can include insects, carrion, small birds and mammals, and the eggs of other birds. Then there is plant matter including corn, seeds, etc. Your catfood was not only convenient but contains a good source of both animal and ...
During cold weather, birds will go into torpor where they will reduce their metabolic rate to conserve energy over the night. This burns fewer calories and maintains fat reserves that help insulate them from cold temperatures. Behaviorally, many bird species will roost communally to share heat among each other.
Sounds like a Curlew (Numenius arquata). http://www.british-birdsongs.uk/curlew/ https://www.youtube.com/watch?v=q7V25M0szqU
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