Few days back I wanted to create a duck with horns. And that duck says "Happy Toast Day". But horns are missing. The duck file is here:

```
\documentclass{standalone}
\usepackage{tikzducks}

\begin{document}
 
\begin{tikzpicture}
\duck[ 
   speech=\scalebox{0.4}{\parbox{2cm}{\color{black} \centering Happy Toast Day}}, 
   devil=green 
]
\end{tikzpicture}    
  
\end{document}
```
I'm getting error. Here is log file:
```
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian) (preloaded format=pdflatex 2019.5.26)  1 MAR 2021 21:49
entering extended mode
 restricted \write18 enabled.
 %&-line parsing enabled.
**toast.tex
(./toast.tex
LaTeX2e <2017-04-15>
Babel <3.18> and hyphenation patterns for 84 language(s) loaded.
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Document Class: standalone 2015/07/15 v1.2 Class to compile TeX sub-files stand
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Package ifluatex Info: LuaTeX not detected.
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Package: ifpdf 2017/03/15 v3.2 Provides the ifpdf switch
)
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Package: ifxetex 2010/09/12 v0.6 Provides ifxetex conditional
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Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
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Package: tikzducks 

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Package: xcolor 2016/05/11 v2.12 LaTeX color extensions (UK)

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No file toast.aux.
\openout1 = `toast.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 4.
LaTeX Font Info:    ... okay on input line 4.
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ABD: EveryShipout initializing macros

! Package pgfkeys Error: I do not know the key '/duck/devil', to which you pass
ed 'green', and I am going to ignore it. Perhaps you misspelled it.

See the pgfkeys package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.10 ]
      
? 
LaTeX Font Info:    External font `cmex10' loaded for size
(Font)              <7> on input line 10.
LaTeX Font Info:    External font `cmex10' loaded for size
(Font)              <5> on input line 10.
[1

{/var/lib/texmf/fonts/map/pdftex/updmap/pdftex.map}] (./toast.aux) ) 
Here is how much of TeX's memory you used:
 12398 strings out of 492982
 253826 string characters out of 6134896
 297663 words of memory out of 5000000
 15747 multiletter control sequences out of 15000+600000
 3640 words of font info for 14 fonts, out of 8000000 for 9000
 1141 hyphenation exceptions out of 8191
 62i,7n,61p,648b,548s stack positions out of 5000i,500n,10000p,200000b,80000s
</usr/share
/texlive/texmf-dist/fonts/type1/public/amsfonts/cm/cmr10.pfb>
Output written on toast.pdf (1 page, 12969 bytes).
PDF statistics:
 15 PDF objects out of 1000 (max. 8388607)
 10 compressed objects within 1 object stream
 0 named destinations out of 1000 (max. 500000)
 13 words of extra memory for PDF output out of 10000 (max. 10000000)
```
About `os` and `version`
```
tex --version

TeX 3.14159265 (TeX Live 2017/Debian)
kpathsea version 6.2.3
Copyright 2017 D.E. Knuth.
There is NO warranty.  Redistribution of this software is
covered by the terms of both the TeX copyright and
the Lesser GNU General Public License.
For more information about these matters, see the file
named COPYING and the TeX source.
Primary author of TeX: D.E. Knuth.
```
```
uname -a

Linux mc-mc 4.15.0-135-generic #139-Ubuntu SMP Mon Jan 18 17:39:27 UTC 2021 i686 i686 i686 GNU/Linux
```

What I'm missing?