Guide to Mist Nets

Please note, the sale of mist nets is restricted to those with an appropriate licence or permit. Please provide a copy when ordering.

NHBS offers a range of mist nets to meet specific requirements when catching bats or birds.  All of our mist nets are manufactured to high standards and feature the following advantages;

  • Net design is based on more than 30 years experience.
  • All nets are made from the highest quality nylon and polyester netting.
  • All nets are black and UV sun-protected; the material and colours are durable and long-lasting.
  • The special knots used in all our nets help to prevent the loops and shelf strings from moving.
  • The construction with positioning strings prevents wind shift of the netting.
  • Each net comes with a cotton bag.

Mist NetsNew Loops

All designs of net have recently been upgraded with new loops.  Net loops are now marked with an indelible serial number to help track nets used illegally.  The serial number is placed on one of the colour loops and on the product label as well.  The new mist net loops are longer and stronger than previous designs.  Top loops are colour-coded and equipped with stoppers to make fast setting easier.  The new loops are also compatible with the telescopic mist net pole .

Understanding the Terminology

Net Dimensions

All net dimensions are given without loops and stretched to a standard tension.  Nets of 3m are ideal for paths and small clearings, whilst nets in excess of 15m in length require careful setting.  You should also ensure enough competent helpers are on hand to deal with large numbers of catches experienced by large nets.

Mesh Size

This is measured by one side of the square mesh, e.g. 16mm refers to a 16 x 16mm square mesh.  The mesh size should be ideally suited to your chosen target species.  If the mesh size is too small, the bat or bird may escape.  If the mesh size is too large, the bat or bird may become overly tangled in the net.  You also risk catching non-target species.  Target species for each net are provided in the product description.

Shelves

The number of shelves (given in the product description) refers to the number of rows of shelves on the net.  Nets of up to three shelves are tethered on a single shelf strand to prevent wind bunching the netting.  Nets with four or five shelves feature two tethered strands.

Denier and Ply

The denier and ply of a net provide an indication of the thickness, visibility and strength of the net.  Denier refers to the weight in grams of 9000 metres of thread.  Ply refers to the number of threads of a given denier wound round one another to make the fibre of the net.  The smaller the denier and ply, the lighter and thinner the net, e.g. a 70 denier/2 ply net is lighter, less visible, but normally less strong than a 210 denier/3 ply net.  However, differing materials can confound this relationship, e.g. polyester is heavier than nylon so the same denier net will be finer in polyester than in nylon.

Choosing a Mist Net

A mist net must be ideally suited to the target species, location and conditions of use.  To select the appropriate mist net, follow the stages below;

1. WHAT DO YOU INTEND TO CATCH?

Search the product pages to find all the nets suited to your chosen group.  Mist nets have been divided into four groups;

Mist Nets for Bats: includes all species of bats

Mist Nets for Small Birds: includes all small passerines

Mist Nets for Medium-sized Birds: includes medium-sized passerines, waders, small ducks, small to medium terns, small owls, small raptors

Mist Nets for Large Birds: includes medium to big waders, owls, medium to big raptors, medium to big ducks, geese and cormorants.

5-Hole Small Bird Ringing (Banding) Pliers2. CHOOSE BETWEEN NET TYPES

There are several net types to choose between, although not every net type will be found in every group of target individuals.

 

Ultra Thin Series M Mist Net

These nearly invisible ultra-thin monofilament nylon nets are perfect for catching the smallest birds (e.g. hummingbirds) and small bat species such as Pipstrellus sp.  They are available in two mesh sizes (14 and 20mm).

Series 700P (polyester) Mist Net

These polyester nets are recommended for catching small bats and birds.  They are barely visible and can be used in any habitat, including open areas.  The polyester fibre in UV resistant and does not absorb moisture.  In the morning or after rain, just shake the net to remove droplets.  A well-stretched net has only one layer (no pockets) and bats are less likely to echolocate it than a nylon net.  The polyester is also stronger and more durable than nylon.

Series 700 Mist Net

This classic design of net is deep black, UV stable and softer than polyester.  They can be used for catching birds and bats in all kinds of habitat, including open areas.  They are both popular and effective.

Series 1000 Mist Net

These nets are stronger and more durable than the Series 700 mist nets.  They are ideal for long term use; they remain as strong and as black as new after 500 days of continuous exposure in the field.  They are more visible than the Series 700 nets, so we recommend that they be set in front of trees or bushes to decrease visibility and to increase their effectiveness.  They are very safe for birds and effectively catch small to medium-sized species.

Series 2000 Mist Net

These nets are very strong and durable and are primarily designed to catch relatively big birds.  They are more visible than the Series 700 and 1000 nets so are most effective when used in shadow when the netting is less visible.  The 19mm mesh size nets are most suited to catching birds at night, such as when using recorded calls.

3. CHOOSING SPECIFIC NETS

Once you’ve settled on your chosen net type to catch your target species, you should then consider the dimensions of the net.  The mesh size should be ideally suited to the target species (see above).  The length of the net should suit its location (e.g. path, clearing, open habitat) and the size of catch required.  Make sure there are helpers to properly monitor the whole net.  Consider the height of the net and number of shelves, the type and height of the vegetation in your sample area, as well as light conditions.

4.  ERECTING THE NET

Mist Net Mounting SetFinally, ensure the net is erected properly on suitable poles, such as the telescopic mist net pole.  Nets may stretch over time so if left in place for prolonged periods, they must be tightened to keep the net taut.  Ensure the nets are protected from overstretching – using a Mounting Set with rubber rope can help prevent this.

If you require any further information then please contact us.  Mist nets are for use by trained ringers; you will need to supply a copy of your appropriate licence or permit when ordering.

An Introduction to IBAs from Adrian Long, Head of Communications, BirdLife International

Important Bird Areas (IBAs) form a worldwide network of sites for the conservation of birds. When complete, this global network is likely to comprise around 15,000 IBAs covering some 10 million km2 (c.7% of the world’s land surface) identified on the basis of about 40% of the world’s bird species. The effective conservation of these sites will contribute substantially to the protection of the world’s biological diversity.
IBAs are:

  • critical sites for the conservation of birds and biodiversity
  • places of international importance
  • practical targets for conservation action
  • selected according to internationally recognised criteria
  • used to reinforce existing protected area networks
  • used as part of a wider approach to conservation

Data collection and analysis play a highly influential role in underpinning the conservation and management of IBAs. Useful for conservationists, ornithologists, governmental and non-governmental agencies, policy-makers, researchers, consultants and planners, the data managed in the World Bird Database (WBDB) are intended to inform and guide practical management and actions at IBAs and to target political and legal mechanisms to achieve the adequate protection of IBAs.

Contributions have been made by a vast network of ornithologists, birdwatchers and conservation experts around the world. Many thousands of individuals have been involved in the collation of data. In most countries the relevant BirdLife International Partner has co-ordinated the work nationally, and this has generally involved substantial collaboration with governmental and non-governmental organisations.

As of March 2006 over 10,600 IBAs have been identified, mapped and documented in 234 countries (or territories/autonomous regions) and at sea by BirdLife. There are 115 National or sub National IBA Inventories and Five (six if you count Pacific CD) regional directories (Europe, Middle East, Africa, Asia, Americas) published. A CD for (most of the) the Pacific has just been produced. Antarctic and marine directories are still in production. Most of these IBAs are available through NHBS, BirdLife’s global distribution partner – this catalogue is a summary of IBAs, key ornithological conservation books, and background reading on habitat and species protection.

We have put together a global guide to IBAs, featuring all the books – many published by BirdLife International – and field equipment necessary for those interested in, or working in, bird conservation.

Effects of Climate Change on Birds jacket imageBrowse our IBAs buyer’s guide hereImportant Bird Areas of the Americas jacket imageBird Migration and Global Change jacket image

The Skeptical Environmentalist is back with Smart Solutions to Climate Change

Bjørn Lomborg shot to fame with The Skeptical Environmentalist in 2001, a book which generated a great deal of interest from scientists and the media alike. The debate which followed focused on Lomborg’s general assertion that much of what environmentalists claimed was not nearly as bad as they reported. FromThe Skeptical Environmentalist jacket image pollution to public health, and the extinction of biodiversity to climate change, Lomborg offered analysis to show a better than feared picture. Several books since (e.g. The Lomborg Deception) have taken Lomborg to task over his methods and choice of data, and much has been made, particularly by the climate deniers, of his dismissive coverage of global warming.

Well… following on from The Skeptical Environmentalist, and his later book Cool It, he’s back to answer his critics with a new edited book on our response to climate change. Smart Solutions to Climate Change takes catastrophic climate change as a starting point. “I am saying what I have always said” says Lomborg, “that the climate is a real and important, man-made problem, but that we are Smart Solutions to Climate Change jacket imagehandling it badly”. A panel of authors (economists – including three Nobel laureates) examine a range of policy and technology responses to climate change and suggest we change emphasis – shifting away from a Kyoto/Copenhagen focus on reducing emissions, and instead invest $100 billion in new technology funded by a carbon tax.

This is an in-depth and fairly technical read, but thought provoking and accessible. No matter what your views on Lomborg, he is now addressing what many see as a looming reality – that we are not making anywhere near enough progress in responding to climate change, and that even building on what’s already been started will not fix the problem.

NHBS at ICES

NHBS will be opening shop at the annual ICES Annual Science Conference for the first time next week. We are looking forward to meeting the marine science community and are bringing a few hundred books to browse and buy. Do drop by if you are there, we’ll be at Stand 5 at the La Cite Events Center in Nantes, 20 – 24 September.

“ICES was established in 1902 as an intergovernmental organization[…]ICES grew from a small body of likeminded researchers to an organization involving about 1600 scientists, with 20 Member Countries as well as several Observer Countries and non-governmental organizations. ICES fulfils its functions through an Annual Science Conference, about a dozen committees, close to one hundred working and study groups, several annual symposia, and a wide range of publications” From the ICES Strategic Plan – A Vision Worth Sharing(pdf)

Click on any of the images below to see a selection of recent and forthcoming books on marine science:

Coastal Phytoplankton jacket imageMarine Mammal Ecology and Conservation jacket imageWorld Atlas of Mangroves jacket imageAtlantic Salmon Ecology jacket imageDiscoveries of the Census of Marine Life: Making Ocean Life Count jacket image

NHBS Catalogue – Explore the World of Bats

This weekend NHBS are heading up to Loughborough for the Bat Conservation Trust’s annual National Bat Conference. We are proud to be involved with bat conservation through the provision of the latest books and equipment for everyone from ecological consultants to amateur bat lovers. Our range is always expanding to keep up with developments in technology and research, and our wildlife equipment team are always chasing the most up-to-date information to help kit out those working in bat conservation.

Our catalogue is a guide to everything you’ll need for bat detecting and conservation. We’ve included information about choosing the right bat detector and accessories, as well as a comprehensive list of the field kit and reference books we think you will find most useful. You can read it in the window below, or click here to view it as a pdf.

We are always coming across new innovations and updating our stock so don’t forget to check our bat equipment pages on the website.

NHBS | Explore the World of Bats