QUOTE(aeiou228 @ Feb 8 2010, 11:43 PM)
I was once convinced that high floor is good for swiftlets too. No doubt about it, the higher the better for the birds. But I changed my mind after seeing those 9' floor height BH also as successful.
Though higher ceiling provides safer environment for the birds but it may cause failure to a BH too. This is because the height also provides safer environment for predators such as squires, lizards, bats too. Catching or chasing them away is already a daunting task for a 10' high floor and now we talking about 15' high ceiling ?...gosh !! it will be extremely difficult. Just imaging how difficult you want to catch a lizard in your house.....
Wow, I didnt realise this is going to be so much fun chasing away so many diff types of unwanted guests.
Looks to me I will needing a blowpipe too
thks for the warning.
Now I need to put on my thinking cap to see if I can AVOID such pests instead of having to deal with them after they get in.
One thing that comes to mind is something Dunsun mentioned.. ie slippery material wrapped around the BH for those crawlies.
If connected to TNB power, maybe some form of physical obstacle around the cable. After all now adays they use the insulated power cable anyway, shd be safe enuff to do something like that.
Just dun know how to avoid the bats.
I am still thinking of the infrared lighting connected to a PIR sensor.
If you have the PIR sensor facing out, it shd trigger before it gets into the BH.
Or maybe something physical like a mist net (I have seen Perhilitan use them to do bird sampling).
The nets will take care of both bats and owls.
Just need to figure a way to automate the timed deployment.
Or maybe someone with some good electronic experience can fabricate a timer triggered auto-gate of light material like wire-mesh.
That ought to sell amongst us, ANY TAKERS?
Ting! Ting! another idea, those fish pellet dispensers use in commercial fish ponds.
Those can be ripped apart for the timer and motor.
I may try DIY this someday when the need arises.
Added on February 9, 2010, 1:10 amQUOTE(Raymondetc @ Feb 9 2010, 12:18 AM)
Hi Cergau,
just for discussing on the design of your BH,
i guess you can have some saving in construction cost if
1) reduce the ceiling height to say 12ft of 10ft?
2) run your staircase through the LAL hole, this shall save you one wall per floor (short side)
3) do away with the small observation room/lounge at the top floor
4) use corrugated zince roof (rather than concrete slap), but some shall say security issue, but since it's a stand alone, it's quite difficult to climb up to the roof. As a thief, i'll most probably enter by breaking the door, or asking the owner to open up(with force of course)
5) do a 2 storey rather than a 3 storey
6) do a double/tripper tier nesting plank (apartment style)
7) do a Dog Kennel entrance, most probably since it's in an agriculture land, double that as a roving area, this shall free up the "open roof" area so you can put up more nesting plan?
The above is just my personal opinion just for discussion as a newbie, who has never own a BH yet (hopefuly soon). Care to comment?
Raymondetc,
thks for yr comments.
"1) reduce the ceiling height to say 12ft of 10ft?"
My thinking was that most contractors quote by the floor space, height is never mentioned, maybe they will factor in additional for a 15' height.
"2) run your staircase through the LAL hole, this shall save you one wall per floor (short side)"
I dont want any obstruction in the nesting area and also cos' of the way contractors quote as in pt 1. Additional wall may not add on to cost.
"3) do away with the small observation room/lounge at the top floor"
It's a nice-to-have thing, not at all necessary. But then, what the heck, we need some luxury too at the end of the day. Have some friends over for drinks and a nice view of the surrounding.
"4) use corrugated zince roof (rather than concrete slap), but some shall say security issue, but since it's a stand alone, it's quite difficult to climb up to the roof. As a thief, i'll most probably enter by breaking the door, or asking the owner to open up(with force of course)"
Yes, it's security consideration, I know of a shophse BH that is for sale in the P Klg area. Owner sort of 'give-up' due to the frequent thefts thru the roof. This BH is also termite infested.
One consideration is to use metal trusses (newer hses use that) to avoid termites. That still leaves thermal insulation to deal with. My neighbor just had his roof changed due to termite infestation, cost RM30K for trusses and new tiles. I figured that amt will buy me a concrete roofing with less of a concern over theft thru roof.
"5) do a 2 storey rather than a 3 storey"
Yes, I am still considering a half size BH of say 25' x 40' x 3 storey and expand side ways when need arises. But not 2 story to 3 story. That will be too much disturbance to existing birds. Also that will be like a new BH as the birds will need to get used to a new LMB at a diff height. (see Swiftlailai sharing).
"6) do a double/tripper tier nesting plank (apartment style)"
Wah, very greedy -ah! Definitely when my BH spills over.
"7) do a Dog Kennel entrance, most probably since it's in an agriculture land, double that as a roving area, this shall free up the "open roof" area so you can put up more nesting plan?"
Yes, that's a good idea, thks. I will mull over it a while. It helps with rain getting in too.
I have another design with a sort of DK but doesnt double as a roving area though.
My primary objective is not so much the cost (though important) but what I think the birds will like (gathered frm this forum and 2 books)
Then only cutting the unnecessary for cost consideration.
Added on February 9, 2010, 1:33 amQUOTE(aeiou228 @ Feb 9 2010, 12:05 AM)
Nice item you got there
BTW, you can't harvest ( or rather dangerous to harvest) the nests on top of the 1st floor's LAL. unless you place the 2 LAL on a same alignment.
aeiou228,
1)thks, took me a day to make the test kit.
2)Yes, I can see that now. I intended the mobile scaffolding to straddle the full width of the BH, just dun know if it will be unyielding to wheel such a big contraption in the BH running over piles of guano. I have 4.5' on each side of the LAL to play with. Need to imagine this further if the scaffolding can be strengthened w/o a centre support when I wheel it over the LAL.
thanks again.
This post has been edited by Cergau: Feb 9 2010, 01:33 AM