1. Tim Birkhead.

    Current Biology 25(19):R817 (2015) PMID 26726333

  2. Tim Birkhead

    Current Biology 25(19):R817 (2015)

    Tim Birkhead in Q&A
  3. Long sperm fertilize more eggs in a bird.

    Proceedings of the Royal Society B: Biological ... 282(1799):20141897 (2015) PMID 25621327 PMCID PMC4286041

    Sperm competition, in which the ejaculates of multiple males compete to fertilize a female's ova, results in strong selection on sperm traits. Although sperm size and swimming velocity are known to independently affect fertilization success in certain species, exploring the relationship between ...
  4. Diversity in olfactory bulb size in birds reflects allometry, ecology, and phylogeny.

    Frontiers in Neuroanatomy 9:102 (2015) PMID 26283931 PMCID PMC4518324

    The relative size of olfactory bulbs (OBs) is correlated with olfactory capabilities across vertebrates and is widely used to assess the relative importance of olfaction to a species' ecology. In birds, variations in the relative size of OBs are correlated with some behaviors; however, the facto...
  5. Stormy outlook for long-term ecology studies.

    Nature 514(7523):405 (2014) PMID 25341754

  6. Bird senses: Vision

    New Scientist 219(2928):ii (2013)

    Some birds can see behind them, others see UV or great distances, and a few can even “see” with sound
  7. Bird senses: Taste, smell and magnetism

    New Scientist 219(2928):vi (2013)

    Mysteries and myths surrounded the quest for taste and smell in birds but now focus is on an intriguing sixth sense
  8. Bird senses: Touch and hearing

    New Scientist 219(2928):iv (2013)

    Extraordinary adaptations underpin the everyday activities of a dabbling duck or an owl on the hunt
  9. Bird senses: What next

    New Scientist 219(2928):viii (2013)

    The seemingly arcane study of bird senses holds huge potential to improve human health. So much remains unknown
  10. Comparison between Normalised and Unnormalised 454-Sequencing Libraries for Small-Scale RNA-Seq Studies.

    Comparative and Functional Genomics 2012:281693 (2012) PMID 22319409 PMCID PMC3272792

    Next-generation sequencing of transcriptomes (RNA-Seq) is being used increasingly in studies of nonmodel organisms. Here, we evaluate the effectiveness of normalising cDNA libraries prior to sequencing in a small-scale study of the zebra finch. We find that assemblies produced from normalised li...
  11. The genome of a songbird.

    Nature 464(7289):757 (2010) PMID 20360741 PMCID PMC3187626

    The zebra finch is an important model organism in several fields with unique relevance to human neuroscience. Like other songbirds, the zebra finch communicates through learned vocalizations, an ability otherwise documented only in humans and a few other animals and lacking in the chicken-the on...
  12. Sperm morphology and velocity are genetically codetermined in the zebra finch.

    Evolution 63(10):2730 (2009) PMID 19552737

    Sperm morphology (size and shape) and sperm velocity are both positively associated with fertilization success, and are expected to be under strong selection. Until recently, evidence for a link between sperm morphology and velocity was lacking, but recent comparative studies have shown that spe...
  13. An academic life: researching and teaching animal behaviour

    Animal Behaviour 91 (2006)

  14. Spot the difference

    Trends in Ecology & Evolution 16(9):527 (2001)

  15. Testosterone and maternal effects – integrating mechanisms and function

    Trends in Ecology & Evolution 15(3):86 (2000)

  16. Can relaxed time constraints on sperm production eliminate protandry in an ectotherm?

    Biological Journal of the Linnean Society 66(2):159 (1999)

    In most temperate-zone reptiles, as in many other ectothermic taxa, males emerge from periods of inactivity (e.g. hibernation) before females, a pattern referred to as protandry. In the large body of theory depicting its evolution it is assumed that as selection pressures on females moderat...
  17. Female roles in perspective

    Trends in Ecology & Evolution 12(9):337 (1997)