QUOTE(tuckfook @ Jun 1 2011, 08:56 PM)
That's what I was told and thought logical but have found that it makes no difference. We are about 5 deg, N
They go in the direction that the in/out hole leads them into.
Birds will fly against the direction of each other without colliding into each.
Big roving rooms allow them to fly in any direction comfortable but the small roving rooms will cause them discomfort, observing from their flight via cctv.
When they are used to the place, they zoom in and out without any hesitation but in complete darkness they will slow down considerably.
Before the birds get used to a new BH, conditions must be conducive for them to explore the BH. Believe it or not, they are actually afraid of very dark places. They will initially rest in areas where it is fairly bright but later on move to the darker areas to build their nest.
I used to have birds stay overnight clinging on to my external tweeters.
Good report. They go in the direction that the in/out hole leads them into.
Birds will fly against the direction of each other without colliding into each.
Big roving rooms allow them to fly in any direction comfortable but the small roving rooms will cause them discomfort, observing from their flight via cctv.
When they are used to the place, they zoom in and out without any hesitation but in complete darkness they will slow down considerably.
Before the birds get used to a new BH, conditions must be conducive for them to explore the BH. Believe it or not, they are actually afraid of very dark places. They will initially rest in areas where it is fairly bright but later on move to the darker areas to build their nest.
I used to have birds stay overnight clinging on to my external tweeters.
Swiftlets can hear in total darkness and can fly safely but not freely and as they cannot see. Mind you that SWIFTLETS have very good other senses. They can see very sharply and senses of smell is as good and so, obviously swiftlets would't venture into the darkness before ensuring that it's totally safe to do so as they can't see in the darkness. Then, Darkness is where the swiftlets have the advantages over predators so they prefer to build nest in darkness where most predators cannot see.
That's why many new BHs, swiftlets tend to stay at the upper floor initially and as swiftlets' confidence gather, more birds will move to the lower floor where the conditions normally better controlled than the top floor which in most cases is rather too hot during the day and too cold during the night.
Infact, I believe that it's their sense of smell that determine where their chicks are after zooming the echolocation of the position in total darkness. They hit hard on the plank to get the grip and jump off the plank when flying off. That's what I find, any comments?
Occasionally, some BHs don't follow these rules.
Jun 2 2011, 12:58 PM

Quote
0.0711sec
0.32
7 queries
GZIP Disabled