I wonder if anyone has purchased ready-to-consume EBN that are shaped like a corner nest?
I am not certain but I doubt so.
All it says is the raw EBN buyers make more from corner nest as they will sell all (corner and 180 deg) at the same price.
Reason being the cleaners break them all (180deg as well as corner ones) down for cleaning.
They are then reassembled into 180deg EBN.
The only valid reason for corner nest to fetch lower price is if corner nest are more difficult to clean even after disassembling.
Appreciate feedback for my learning.

Will do my BH by saving money by leaving the corners alone!

Nice talking to you the other day!!

my BH all the corners installed boards ... 1 floor 330 ... 2 floor total ~660
got bird droppings but none of the patch expanded until very big ... only 1 feather and no nest marking
don't dare to pull out some corner boards

Actually, we won't buy corner and cup nest at same price. Either separate or lump together (rojak buying). If separate cup and corner, the price different between rm800 to rm1200. If Lump together, the price slightly depending on the % of corner. Most of the time, we inspect the nest, beside checking the quality (size, colour, feather), we also (MUST) estimate the % of corner in each batch of purchasing. furthermore, corner also divided into triangle 90'deg and CURVE 45'deg.

If your buyer is from Hong Kong, you won't able to sell corner as cup nest. THEY KNOW, is obvious the shape, the strand lining and etc is different. We don't break the nest otherwise the wastage very high. We cleaning it under dry clean method. Corner is just slightly more difficult and more wastage. Main reason price different because of the shape i.e. cup shape if original shape from cave. This is define in hong kong buyers standard. Secondly, corner nest have biggest 'leg' as compare to cup nest generally.

What prompted my original post was there are lots of photos on the net showing nests being reassembled (thus broken up for cleaning) on molds.
My thinking was corner nest will eventually be reassembled into cups why the price difference.

thks for your explanation.
To recap yr explanation.. for dry-cleaning they are NOT broken up while wet-cleaning they are broken up.
Wheter wet or dry corner nest present additional difficulties in cleaning.

Is the degree of additional difficulty justify the vast price difference?

My original question remain unanswered...do EBN outlets ever sell cleaned EBN that are NOT cups?
to reword...do outlets sell cleaned EBN that are corner shaped?

Sifus,
Would appreciate if I receive some critique on the following design
Thank you in advance.

quite similar to my previous design. plz kindly share your opinions, i also wanna know the cons!

^above design .... how to service the entrance hole tweeters ? build scaffolding or climb ladder ?

This post has been edited by BirdNest_Satay: Jun 30 2011, 02:50 AM

your birds will be last to know sunrise

assuming that knowing sunrise is important, can I install an automatic gate to open at 7am and close at 730am to let light in? or can i on a light at the roving area to simulate sunrise for easier installation?

There are ledges on each floor in the LAL, to be accessed over the 3' tall wall of of the LAR.
I plan to place a stout mobile platform resting snugly on the ledges when in need.
Removed when done. Used in tandem with a safety harness of course!
The ledges are the results of the diff of the thickness of the columns and beams with the walls.
The orientation necessitated by neighbor's tall rubber trees on the EAST which may interfere with the flight path.
The LMBs are facing the clearest flight paths available on the site.

Thks.
Any comments on the dimensions?
LAL - 12' 10" x 15' 2"
LMB - 3' x 2'

This post has been edited by Cergau: Jun 30 2011, 10:54 AM

Is it ideal to have LAL design where your birds would need to drop 30 over feet (assume every floor 10-11 ft high) to reach the ground floor?

My experience/observation is that LAL followed by each other in a row like manner, not directly to the bottom yields better results.

thks for comments.
like this? which I shared in V2?
comments from sifus then warned against the danger of offset LAL.
Due mainly from disorientation from working in the dark.


How did you arrive at your 'observation'?
Do you have the benefit of having/seeing both types at startup at the same time in the same locality?
Not a challenge but curiosity... cos' I still harbor the believe an offset LAL affords a smoother glide thus the 'preferred' LAL design.

Yes I have seen both in action myself and those with a straight down LAL design experienced slower growth. Same area, same house design, in fact both BH just opp each other separated by a 2-lane road.

The one with straight down LAL took a long time before seeing droppings on the ground floor, while the offset one after 2 weeks open sound already seeing droppings on ground floor.

Straight down LAL took abt 4 years to achieve 1000 nests while the offset LAL 2.5 years already 800 nest.

I can be wrong but my observations are as so.

---

Added on June 30, 2011, 1:53 pmAs for safety, I build mine with a 2-layer brick wall around the void so ppl don't fall down.

If you think this might hinder bird's flight path you can put metal railings with larger separation between posts.

But as long as the void is 10x10 or bigger I don't think a 1 foot high wall would hinder flight path, but definitely safer.

This post has been edited by northface: Jun 30 2011, 01:53 PM

How do you straddle the void when you harvest the nests above the void?
Does positioning yourself and your 'spider-contraption' (my guess) over the void get into the birds way big time?

yes, retail do sell corner nest. Kedai ubat mostly sell corner nest same as cup shape price too or almost consider no different. BUT as for wholesale market, corner does make different price. No one (very less) people will process corner nest into a cup shape, because in order to do that, u need to wet clean process i.e. increase wastage and u can not sell as good as cup shape price or even merely cup shape price (somehow not look alike). as you aware that corner and cup different between Rm800 to rm1200 and furthermore corner also divided into 2 types, corner triangle and corner curve. Of course, curve is slightly more expensive than triangle. Finally, it fall in behind so many grade and labor cost is expensive, therefore, process corner to corner is viable. This is according to HK std generally.

Unless the raw material regardless corner or cup is very dirty i.e. very labor intentive if process normal way. therefore, we will decide to carry out wet clean i.e. fast but wastage higher. Then this type will eventually form it into a molded cup shape. This kind of raw material normally is very heavy feather, double layer & guano spot/stain, which raw material is selling below corner nest.

I left nesting planks out of the area above the void, so you waste the ceiling space on 1st floor and 2nd floor.

I've seem some other people come up with some mechanism to harvest that space. To me it is not worth it risking a fall from those places I just left them empty. Besides, if your 3 storey BH is really full house, that little space won't matter anymore.

If you compare this to your straight down design, actually you're only wasting 1 more void section. If your void is 10'x10' you have 100sq.ft less space, not a big deal imo.

thks for feedback.
I counted wastage of 2 void-space if the space above the voids are left bare of NP.

1 short internal flight path in the roving room forces the birds to dive down, which they won't until they are very familiar with the place. Gentle flight path always better especially when you are building a house especially for the birds..

2 small roving room gives less turning(roving) space perhaps less conducive for newly arrived birds and future baby birds.

solution,

1 set the inter floor voids to the next section back. increase the inter floor void to max.

2 increase the roving room to cover 2 sections.

3 expose the staircase to be able to lead the birds downwards, if possible.

comment: a staggered void is virtually trying to make the flight path downwards as smooth as possible( but in one plane). By allowing the birds to turn and zig zag down also offers the same, but in multiple planes, if you see what I mean.

For birds to dive down, it takes some time for baby/new birds to learn how to do it for sure. If you have more nesting room to dispose of at your luxury, coupled with good PULLING sound as claimed, you are definitely making life easier for the birds in an extended roving room.

The design of such could be useful for long term growth if insects are scarce and there is a need to breed insects within the roving room. Just my 2 cents.

This post has been edited by swift4ever: Jun 30 2011, 10:53 PM