Lecture notes
Birds_Vocal Behaviour
- Module
- Birds (BI2EY5)
- Institution
- University Of Reading (UoR)
Lecture notes regarding the vocal behaviour of birds,
[Show more]
Seller
Follow
Content preview
BirdsWeek 8
Chris Foster
Vocal Behavior
- Spectrograms; frequency and time
- Oscillograms; pressure and time
Repertoires;
1. Song; long and loud// function; attract mate/ repel intruders
2. Call; vocalization is shorter/ simpler // Function; contact/ food call/ begging/ alarm/
mobbing/ aggressive [delivered in different combo/ variation changes meaning]
3. Non-vocal sounds; woodpecker drumming [distinctive to call] – can change pace and
frequency
Vocal Development;
- Song is learned/ open ended learners; Nightingale and Starlings learn other species
songs
- Sensitive period when fledglings learn the species song.
Variation and Function;
- Recognize species and individuals
- Geographic variation; songs vary from different places = dialect
Function;
1. Territorial defense [Respond to M calls]
2. Attract Mates
- Copulation solicitation display = F lifts tail in respond to M song
- Consistent output/ higher quantity and large repertoire = more attractive
Behavior;
- Dawn chorus [attract F/ calmer songs carry further]
- Order which species join is determined by vision [need to see predators before giving
away location, species with large eyes join first]
- Those higher up habitats [sunlight reaches first = canopy] sing first
Female Song;
- Similar/ sing when fertile and communicate with young
- Duets for pair bonding
Mimicry;
- Starling/Song thrush – develop diverse repertoire/ exclude other species
- Migratory species learn the songs of species they’ve encountered
- Mimic predators
Flight songs;
- Skylark / grassland/ Steppe specs/ shorebirds/ wader [display of strength]
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller jemradford011. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £2.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67474 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now