Tel: 0191 543 6405

Email: [email protected]


Bird sexing – Blood Sample

Bird sexing – Blood Sample

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DNA testing is the most reliable way to determine the sex of mono-morphic bird species. We use cutting edge molecular biology techniques and provide free sample collection kits.

In birds, two chromosomes (W and Z) determine sex. Females carry one of each (ZW), while males carry two Z chromosomes (ZZ). Using state-of-the-art genetic technology, we analyse for the presence of Z and W sex chromosomes in your birds, identifying them as male or female by their DNA.

What species can you test?

We can test for a range of species of birds, falcons, owls and parrots. For example, Kites, Kestrals, Harris Hawks, Peregrine Falcons, Ravens, Song Thrushes, Gyrfalcons, Goshawks, Golden Eagles, Chickens, Bonellis Eagles and Bald Eagles. 

If we have not tested your species of bird before that is not a problem, if you have a known female of the same species we can validate the sexing of this species in our lab and will do so free of charge!

What’s included in the kit?

  • 3 sterile cotton swabs
  • Sampling instructions
  • Client information capture form
  • Sample record form 

Lab processing

This is the complete price for laboratory processing. This price includes:

  • 3 or 2 working day turnaround. 
  • UK based laboratory testing. 
  • UK based customer service.
  • A PDF of the report, which is sent to you by email. 

What kind of samples do you need?

We require a few drops of blood onto a cotton swab. 

We strongly advise that if you are not an experienced bird handler that you have all blood samples taken by and experienced bird handler or veterinarian.

Please take great care when taking samples. If you are sending us more than 1 sample, please wash your hand and sanitise any equipment you are using (e.g scissors/tweezers) between samples to avoid contamination.

Full instructions for sampling is included in the test kit. 

Once you have taken the samples, please return to us as soon as possible using the returns envelope provided. Please note, the customer is responsible for the cost of postage to return the samples back to the lab. 

Our returns address is:

The Durham Genomes Centre, 

Park House, 

Station Road, 


County Durham, 

DH7 0EX 

How long will it take to receive my results?

Our standard service is a 3 working day turnaround (from receipt of samples) for £20, however during the summer months (March-August) we do also offer an accelerated service which is a 2 working day turnaround for £30.

If you have any queries or indeed would like some additional information please do not hesitate to contact us on 0191 543 9448 or [email protected].

© Complement Genomics Ltd. Geneblitz is a registered trademark of Complement Genomics Ltd.

The Durham Genome Centre, Park House, Station Road, Lanchester, Durham, DH7 0EX.

Registered in England and Wales no. 03929876. VAT no. 746970882

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