There are two typical types of open roof entrance design. The first type is most common, entrance hole facing open roof, where the open roof size is normally bigger. Birds can see the entrance hole when they are flying above the open roof. Due to the big size of open roof, after entrance hole normally will be a roving room or partition to block the light, thus this type will occupy larger space for open roof space and roving room, but for new BH in this type based on my observation, swiftlet feel more comfortable and confident to enter .
The second type is very similar to the side window entry, the open roof size is usually small and made to be the first entrance hole, second entrance hole will not facing roof opening directly, so open roof area becomes the roving room. After the second entrance may not need another roving room as the entrance is not facing open roof, most sunlight has been blocked. Thus this type should occupy lesser space. In the beginning swiftlets may take longer time to be familiarized to your entrance. Once tenanted up to certain number, due to small size of open roof, tenants will need to queue for entering, those birds wandering above the roof top could actually help in attracting more young birds coming near to your BH. I would suggest to use this type if your BH located at highly populated swiftlet farming zone or if your BH nesting area is limited.
Both types could succeed, but both also have their pros and cons, which type suit your BH most depends on how much preparation you have done.
有两种较典型的天井式入口设计。第一类是最常见的，洞向着屋顶开口，这种的屋顶开口通常较大。燕子在屋顶上飞行时可以看到洞入口时。由于屋顶开口大且面对洞入口，通常会再用一个漫游室或分隔板阻挡光线，因此这一类型天井及漫游室将占据较大空间，但据我的观察燕子，这类型入口对新燕屋而言燕子会较敢且快进入。
第二类型是和旁洞式入口非常相似，屋顶开口通常很小，变成第一个洞入口，而第二个洞口一般不会面对屋顶开口，因此天井空间变成漫游室。第二个洞口后面通常就不需要漫游室了，因为洞入口没有面对屋顶开口，大部分阳光已被挡掉。因此，这种类型设计占有较小的空间，但燕子可能需要较长时间来熟悉你的燕屋入口,可是一旦到达一定数量后，由于屋顶开口小，燕子需要排队进洞，造成燕子在屋顶上面徘徊，会有助于吸引更多年轻的燕子访问你的燕屋。我觉得这类型设计较适合在燕子稠密区或者是你的燕屋地方有限。
这两种类型的燕屋都可以成功，但两者也都各有利弊，哪种最适合你的燕屋取决于你做了多少准备功夫。
The second type is very similar to the side window entry, the open roof size is usually small and made to be the first entrance hole, second entrance hole will not facing roof opening directly, so open roof area becomes the roving room. After the second entrance may not need another roving room as the entrance is not facing open roof, most sunlight has been blocked. Thus this type should occupy lesser space. In the beginning swiftlets may take longer time to be familiarized to your entrance. Once tenanted up to certain number, due to small size of open roof, tenants will need to queue for entering, those birds wandering above the roof top could actually help in attracting more young birds coming near to your BH. I would suggest to use this type if your BH located at highly populated swiftlet farming zone or if your BH nesting area is limited.
Both types could succeed, but both also have their pros and cons, which type suit your BH most depends on how much preparation you have done.
有两种较典型的天井式入口设计。第一类是最常见的，洞向着屋顶开口，这种的屋顶开口通常较大。燕子在屋顶上飞行时可以看到洞入口时。由于屋顶开口大且面对洞入口，通常会再用一个漫游室或分隔板阻挡光线，因此这一类型天井及漫游室将占据较大空间，但据我的观察燕子，这类型入口对新燕屋而言燕子会较敢且快进入。
第二类型是和旁洞式入口非常相似，屋顶开口通常很小，变成第一个洞入口，而第二个洞口一般不会面对屋顶开口，因此天井空间变成漫游室。第二个洞口后面通常就不需要漫游室了，因为洞入口没有面对屋顶开口，大部分阳光已被挡掉。因此，这种类型设计占有较小的空间，但燕子可能需要较长时间来熟悉你的燕屋入口,可是一旦到达一定数量后，由于屋顶开口小，燕子需要排队进洞，造成燕子在屋顶上面徘徊，会有助于吸引更多年轻的燕子访问你的燕屋。我觉得这类型设计较适合在燕子稠密区或者是你的燕屋地方有限。
这两种类型的燕屋都可以成功，但两者也都各有利弊，哪种最适合你的燕屋取决于你做了多少准备功夫。
Entrance hole facing open roof type洞口面对屋顶开口型
Entrance hole not facing open roof type, open roof size is smaller洞口不面对屋顶开口型，屋顶开口较小
hi Philip, base on your experience which open roof size attracted swift faster: 20x20 or 20x12 0r 12x12 or 8x8.tq
ReplyDeleteI think you are refering to 1st type ie hole facing open roof, actually open roof size itself will not attract swiftlets but the sound, you need to associate with other tools like sounds, hex tweeters and others. If other factors are equal, 20x20, 20x12,12x12 may have the similar result, but too big may be waste of space. If 8x8 is your open roof size, I think is OK, but this is the size of the area underneath open roof it would be too narrow. Room size is recommended 12x12 or slightly bigger. However this is only for reference. I have seen many farms with different size of open roof, I can't actually conclude which open roof size is the real Best because other factors like location, pioneer... are not equal in the comparison. Anyone may want to share your view and experience.
ReplyDeletemr philip, if the BH is made out of containers, wat type of entrance is the most suitable?
ReplyDeleteBe frank I have no experience building BH with containers, but the principle is the same. you should provide more detail, like size of your container and how height you want to put it up?
ReplyDelete